More and more plainly, OpenAI and Anthropic are making plays to own (and lease) the "means of production" in software. OK - I'm a pretty happy renter right now.
As they gobble up previously open software stacks, how viable is it that these stacks remain open? It seems perfectly sensible to me that these providers and their users alike have an interest in further centralizing the dev lifecycle - eg, if Claude-Code or Codex are interfaces to cloud devenvs, then the models can get faster feedback cycles against build / test / etc tooling.
But when the tooling authors are employees of one provider or another, you can bet that those providers will be at least a few versions ahead of the public releases of those build tools, and will enjoy local economies of scale in their pipelines that may not be public at all.
I have personally interacted with migrating features and I have also experienced where there is an internal fork of CPython from more than one group. It isn't really necessarily that they are a few features ahead what I have seen is that they a set of targeted features where they do their best judgement on what they can now leverage. That doesn't necessarily mean its better for everyone.
My experience is that I have personally committed code from Cinder (CPython fork internally from Meta) back into CPython and it was determined that features didn't align with CPython and this isn't some kind of dig between each project at all. Also, at a large mega corporation nearly all groups that use critical software with high complexity they all will have internal forks. I'm not sure what exactly what UV will have added on internally but instead of versions I think that you will have patch collections that might be beneficial to OpenAI but not necessarily for everyone. I hope that OpenAI will interact with the rest of the community and those internal patches can be ported into the overall system if it provides benefit.
It’s a small tool shop building a tiny part of the Python ecosystem, let’s not overstate their importance. They burned through their VC money and needed an exit and CLI tool chains are hyped now for LLMs, but this mostly sounds like an acquihire to me. Dev tools are among the hardest things to monetize with very few real winners, so good for them to get a good exit.
Just a tiny project with over 100 million downloads every month, over 4 million every day. No big deal. Just a small shop, don't overstate its importance.
In the 2024 Python developer survey, 18% of the ecosystem used Poetry. When I opened this manifold question[0], I'm pretty sure uv was about half of Poetry downloads.
Estimating from these numbers, probably about 30% of the ecosystem is using `uv` now. We'll get better numbers when the 2025 Python developer survey is published.
Same. It's game-changing - leaps and bounds above every previous attempt to make Python's packaging, dependency management, and dev workflow easy. I don't know anyone who has tried uv and not immediately thrown every other tool out the window.
been in the python game a long time and i've seen so many tools in this space come and go over the years. i still rely on good ol pip and have had no issues. that said, we utilize mypy and ruff, and have moved to pyproject etc to remotely keep up with the times.
uv solved it, it will be the only tool people use in 2 more years. if you’re a python shop / expert then you can do pip etc but uv turned incidental python + deps from a huge PITA for the rest of us, to It Just Works simplicity on the same level or better than Golang.
If not, do you develop software with source dependencies (go, java, node, rust, python)? If so, how do you handle acquiring those dependencies—by hand or using a tool?
What’s the point of constraining oneself to what is in the OS package manager? I like to keep my dependencies up to date. The versions in the OS package manager are much older.
And let’s say you constrain yourself to your OS package manager. What about the people on different distros? Their package managers are unlikely to have the exact same versions of your deps that your OS has.
Finally someone competent to answer the crucial question. Taken into account the enormous amount of excellent work you did, and the fact that dev tools are hard to monetize, what was your strategy?
In the many darker timelines that one can extrapolate, capturing essential tech stacks is just a pre-cursor to capturing hiring.
Once we start seeing Open AI and Anthropic getting into the certifications and testing they'll quickly become the gold standard. They won't even need to actually test anyone. People will simply consent to having their chat interactions analyzed.
The models collect more information about us than we could ever imagine because definitionally, those features are unknown unknowns for humans. For ML, the gaps in our thinking carry far richer information about is than our actual vocabularies, topics of interest, or stylometric idiosyncrasies.
I'm just here for the day the weights will leak and all the moat will vanish unless you're a Google or Apple and can offer the compute at scale to sustain it.
It's kinda crazy to think we're living in borrowed times in some ways, lots of unknown unknowns and speculations right now, but I think stuff is just gonna shuffle around.
It's not any different from the launch of the FSF. There's a simple solution. If you don't want your lunch eaten by a private equity firm, make sure whatever tool you use is GPL licensed.
> If AI "clean-room" re-implementations are allow to bypass copyright/licenses, the GPL won't protect you.
Isn't that the same for the obligations under BSD/MIT/Apache? The problem they're trying to address is a different one from the problem of AI copyright washing. It's fair to avoid introducing additional problems while debunking another point.
Maybe I'm reading wrong here, but what's the implication of the clean room re-implementations? Someone else is cloning with a changed license, but if I'm still on the GPL licensed tool, how am I "not protected"?
3a. usually here BigCo should continue to develop Project One as GPLv3, or stop working on it and the community would fork and it and continue working on it as GPLv3
3b. BigCo does a "clean-room" reimplementation of Project One and releases it under proprietary licence. Community can still fork the older version and work on it, but BigCo can continue to develop and sell their "original" version.
The biggest scam the mega-clouds and the Githubs ever pulled was convincing open source developers that the GPL was somehow out of vogue and BSD/MIT/Apache was better.
All so they could just vacuum it all up and resell it with impunity.
I remember a somewhat prominent dev in the DC area putting on Twitter around 2012 or so something like "I do plenty of open source coding and I don't put a fucking license on it" and it stuck with me for all these years that it was a weird stance to take.
If it ever goes bad, well I hope that that’s an impetus for new open source projects to be started — and with improvements over and lessons learned from incumbent technologies, right at the v1 of said projects.
I think the issue is that LLMs are a cash problem as much as they are a technical problem. Consumer hardware architectures are still pretty unfriendly to running models which are actually competitive to useful models so if you want to even do inference on a model that's going to reliably give you decent results you're basically in enterprise territory. Unless you want to do it really slowly.
The issue that I see is that Nvidia etc. are incentivised to perpetuate that so the open source community gets the table scraps of distills, fine-tunes etc.
You got me thinking that what's going to happen is some GPU maker is going to offer a subsidized GPU (or RAM stick, or ...whatever) if the GPU can do calculations while your computer is idle, not unlike Folding@home. This way, the company can use the distributed fleet of customer computers to do large computations, while the customer gets a reasonably priced GPU again.
The kinds of GPUs that are in use in enterprise are 30-40k and require a ~10KW system. The challenge with lower power cards is that 30 1k cards are not as powerful, especially since usually you have a few of the enterprise cards in a single unit that can be joined efficiently via high bandwidth link. But even if someone else is paying the utility bill, what happens when the person you gave the card to just doesn’t run the software? Good luck getting your GPU back.
The problem is even if an OSS had the resources (massive data centers the size of NYC packed with top end custom GPU kits) to produce the weights, you need enormous VRAM laden farms of GPUs to do inference on a model like Opus 4.6. Unless the very math of frontier LLMs changes, don’t expect frontier OSS on par to be practical.
There's already an ecosystem of essentially undifferentiated infrastructure providers that sell cheap inference of open weights models that have pretty tight margins.
If the open weights models are good, there are people looking to sell commodity access to it, much like a cloud provider selling you compute.
unless they are also pirate LLMs, I don't see how any open source project could have pockets deep enough for the datacenters needed to seriously contend
If AI tools are as good as the CEOs claim, we should have no friction towards building multiple open source alternatives very quickly. Unless of course, they aren’t as good as they are being sold as, in which case, we have nothing to worry about.
What would the new open source projects do differently from the "old" ones? I don't think you can forbid model training on your code if your project is open source.
Of course they're trying to capture existing tech stacks. The models themselves are plateauing (most advancement is coming from the non-LLM parts of the software), they took too much VC money so they need to make some of it back. So gobbling up wafers, software, etc... is the new plan for spending the money and trying to prevent catastrophic losses.
Honestly, for now they seem to be buying companies built around Open Source projects which otherwise didn't really have a good story to pay for their development long-term anyway. And it seems like the primary reason is just expertise and tooling for building their CLI tools.
As long as they keep the original projects maintained and those aren't just acqui-hires, I think this is almost as good as we can hope for.
Once you’re acquired you have to do what the boss says. That means prioritizing your work to benefit the company. That is often not compatible with true open source.
How frequently do acquired projects seriously maintain their independence? That is rare. They may have more resources but they also have obligations.
And this doesn’t even touch on the whole commodification and box out strategy that so many tech giants have employed.
But how does this work out in the long run, in the case of AGI?
If AGI becomes available, especially at the local and open-source level, shouldn't all these be democratized - meaning that the AGI can simply roll out the tooling you need.
After all, AGI is what all these companies are chasing.
Could you say the same about the Chrome browser? Google is using it to EEE the web (Embrace, Extend and Extend it till it's a monstrosity that nobody else can manage). That's pretty antagonistic. But did people change?
Sample size: 1 but I use Arc browser. It's still webkit under the hood (and in maintenance mode now), though it's actually pretty good and last I checked had most of the baked in google stuff toggled-off by default
Explain to me how this is any different than Microsoft, Blackrock, Google, Oracle, Berkshire or any other giant company acquiring their way to market share?
This is a serious risk for the open source ecosystem and particularly the scientific ecosystem that over the last years has adopted many of these technologies. Having their future depend on a cap-ex heavy company that is currently (based on reporting) spending approx. 2.5 dollars to make a dollar of revenue and must have hypergrowth in the next years or perish is less than ideal. This should discourage anybody doing serious work to adopt more of the upcoming Astral technologies like ty and pyx. Hopefully, ruff and uv are large enough to be forked should (when) the time comes.
On the flip side, I'm not sure I ever saw a revenue plan or exit strategy for Astral other than acquihire. And most plausible bidders are unfortunate in one way or another.
Astral was building a private package hosting system for enterprise customers. That was their stated approach to becoming profitable, while continuing to fund their open source work.
A commodity yes, but could be wrapped in to work very nicely with the latest and greatest in python tooling. Remember, the only 2 ways to make money are by bundling and unbundling. This seems like a pretty easy bundling story.
Yeah you'd think so but somehow JFrog (makers of Artifactory) made half a billion dollars last year. I don't really understand that. Conda also makes an implausible amount of money.
From my understanding there are a lot of companies that need their own package repositories, for a variety of reasons. I listened to a couple podcasts where Charlie Marsh outlined their plans for pyx, and why they felt their entry into that market would be profitable. My guess is that OpenAI just dangled way more money in their faces than what they were likely to get from pyx.
Having a private package index gives you a central place where all employees can install from, without having to screen what each person is installing. Also, if I remember right, there are some large AI and ML focused packages that benefit from an index that's tuned to your specific hardware and workflows.
They could have joined projects like the Linux Foundation which try to not depend on any single donor, even though complete independence from big tech is not possible. I don't know the motivation behind Astral's approach, but this acquisition does leave a weird taste behind about how serious they were about truly open source software. Time will tell, I guess. (Edit: typo)
> I don't know the motivation behind Astral's approach, but this acquisition does leave a weird taste behind about how serious they were about truly open source software.
This might be true for uv and ruff, and hopefully that will happen. But pyx is a platform with associated hosting and if successful would lock people into the Astral ecosystem, even if the code itself was open source.
There are ways to independently fund open source projects, though. I have previously contributed to the Python Software Foundation and to individual open source maintainers through GitHub donations (which are not dependent on GitHub, as there are many alternatives). Projects like the Linux Foundation exist, too. And government funding, especially for scientific endeavors or where software is used to fulfill critical state tasks, is an option, too. I refuse to subject to the hypercommercialization of software and still believe in the principles behind open source.
> I never adopted them, keep using mostly Python written stuff.
Maybe you use non-transitive pure Python dependencies, but it's likely that your tools and dependencies still rely on stuff in Rust or C (e.g.: py-cryptography and Python itself respectively).
I use mostly the batteries, given that the only purpose I have for Python, since version 1.6, is UNIX scripting tasks, beyond shell.
As mentioned multiple times, since my experience with Tcl and continuously rewriting stuff in C, I tend to avoid languages that don't come with JIT, or AOT, in the reference tooling.
I tend to work with Java, .NET, node, C++, for application code.
Naturally AI now changes that, still I tend to focus on approaches that are more classical Python with pip, venv, stuff written in C or C++ that is around for years.
How much money do they make from donations? I don't know but "In practice we frequently payed for travel and hardware."
Translation: nothing at all.
If such a fundamental project that is a revenue driver for so many companies, including midas-level rich companies like Google, can't even pay decent salaries for core devs from donations, then open source model doesn't work in terms of funding the work even at the smallest possible levels of "pay a reasonable market rate for devs".
You either get people who just work for free or businesses built around free work by providing something in addition to free software (which is hard to pull off, as we've seen with Bun and Astral and Deno and Node).
Not who I would've liked to acquire Astral. As long as OpenAI doesn't force bad decisions on to Astral too hard, I'm very happy for the Astral team. They've been making some of the best Python tooling that has made the ecosystem so much better IME.
Eh, if it turns out to be too bad I guess I’ll just end up switching back to pipenv, which is the closest thing to uv (especially due to the automatic Python version management, but not as fast).
Does pipenv download and install prebuilt interpreters when managing Python versions? Last I used it it relied on pyenv to do a local build, which is incredibly finicky on heterogenous fleets of computers.
Curious how well upstream contributors or projects get contributed for these sort of headline-gathering acquisitions (probably not at all, unfortunately).
OpenClaw notably was built around Mario Zechner's pi[0]; uv I believe was highly adapted from Armin Ronacher's rye[1], and uses indygreg's python-build-standalone[2] for distributing Python builds (both of which were eventually transferred to Astral).
In the worst case, Astral will stop developing their tools, someone else will pick them up and will continue polishing them. In the best case, they will just continue as they did until now, and nothing will really change on that front.
Astral is doing good work, but their greatest benefit for the ecosystem so far was showing what's possible and how it's down. Now everyone can take up the quest from here and continue. So any possible harm from here out will be not that deep, at worst we will be missing out on many more cool things they could have built.
This has me thinking about VS Code and VS Codium. I've used VS Code for a while now, but recently grew annoyed at the increasingly prevalent prompts to subscribe to various Microsoft AI tools. I know you can make them go away, but if you bounce between different systems, and particularly deal with installing VS Code on a regular basis, it becomes annoying.
I started using VS Codium, and it feels like using VS Code before the AI hype era. I wonder if we're going to see a commercial version of uv bloated with the things OpenAI wants us all to use, and a community version that's more like the uv we're using right now.
My initial reaction was being weirdly sad about this and I don't fully understand why yet. I read the headline, clicked into the link, and just went noooooooo. I really like uv and I hope it continues to do well, congrats to the team though and hope everyone there gets a good outcome.
Somebody took a deeper look at Claude Code and claims to find evidence of Anthropic's PaaS offering [1]. There's certainly money to be made by offering a nice platform where "citizen developers" can push their code.
From Astral the (fast) linter and type checker are pretty useful companions for agentic development.
I don't think this holds because we're talking about developers who know how to use a package manager, on a piece of software you have to install anyways. The friction of "uv add $other_llm_software" is too low for it to have a real impact.
I think they're more into the extra context they can build for the LLM with ruff/ty.
I don’t think they’re targeting the C suite with it, because they don’t use uv and Microsoft already has Copilot for the “it’s bad but bundled with stuff you’re already paying for” market.
I'm not so sure. I sort of wish they hadn't been acquired because these sort of acquihires usually result in stifling the competition while the incumbent stagnates. It definitely is an acquihire given OpenAI explicitly states they'll be joining the Codex team and only that their existing open-source projects will remain "maintained".
I think, it may be the first time I am actually upset by acquire announcement. I am usually like "well, it is what it is", but this time it just feels like betrayal.
I don't know. yarn never really turned into a vehicle to sell Facebook, though you always kind of transiently knew it was FB that offered it. I imagine that sort of transient advertising is it's own value, too.
It's a good news to me considering their open-source nature. If/when they go downhill there will be still the option to fork, and the previous work will still have been funded.
Now for those wondering who would fork and maintain it for free, that is more of a critic of FOSS in general.
Being in this industry for over 20 years probably jaded me a lot, I understand that's the plan but it's almost always the plan (or publicly stated as).
Only time will tell if it will not affect the ecosystem negatively, best of luck though, I really hope this time is different™.
I've been in the industry for similarly long, and I understand and sympathize with this view. All I can say is that _right now_, we're committed to maintaining our open-source tools with the same level of effort, care, and attention to detail as before. That does not change with this acquisition. No one can guarantee how motives, incentives, and decisions might change years down the line. But that's why we bake optionality into it with the tools being permissively licensed. That makes the worst-case scenarios have the shape of "fork and move on", and not "software disappears forever".
I personally get a lot of confidence in the permissive licensing (both in the current code quality, and the "backup plan" that I can keep using it in the event of an Astralnomical emergency); thank you for being open source!
>Seems like the big AI players love buying up the good dev tooling companies.
Would be a good mustache-twirling cartoon villain tactics, you know, try to prevent advances in developer experience to make vibecoding more attractive =)
It also hints even The Big Guys can’t LLM their tooling fully, and that current bleeding edge “AI” companies are doing that IT thing of making IT for IT (ie dev components, tooling, etc), instead of conquering some entire market on one continent or the other…
Makes you really think about the true productivity. If these companies have the beyond cutting-edge unreleased models so best possible tools shouldn't they be able to poach just a few most important people for cheaper? And then those people could use AI to build new superior product in very fast time. There is also buying an userbase. But I wonder how the key talent purchase strategy would work in comparison...
Yeah, well, the fact is that every person who ever touches Python needed uv, but only Astral folks created it. So, nope, there's no one capable of filling the void, just accept that it's fucked now. The best die first.
All the vibe-coded webshitware these companies are putting out seems too be doing the opposite: it's all even more memory- and cycle-hungry than the webshit we were lovingly pooping out by hand for the last decade.
I feel some "commoditize your complements" (Spolsky) vibes hearing about these acquisitions. Or, potentially, "control your complements"?
If you find your popular, expensive tool leans heavily upon third party tools, it doesn't seem a crazy idea to purchase them for peanuts (compared to your overall worth) to both optimize your tool to use them better and, maybe, reduce the efficacy of how your competitors use them (like changing the API over time, controlling the feature roadmap, etc.) Or maybe I'm being paranoid :-)
I have long since found the VC model for open source questionable. If you are not selling popular enough direct enterprise support what is the model to actually make money.
Take ruff, I have used it, but I had no idea it even had a company behind it... And I must not be only one and it must not be only tool like it...
Anthropic acquiring Bun, now OpenAI acquiring Astral. Both show the big labs recognize that great AI coding tools require great developer tooling, and they are willing to pay for it rather than build inferior alternatives. Good outcome for the teams.
Not exactly a great look for the "AGI is right around the corner" crowd — if the labs had it, they would not need to buy software from humans.
Personally, I'd expect a few good years of stewardship, and then a decline in investment. I can only hope there are enough community members to keep things going by then.
While I -- like most other commenters -- am dubious of both OpenAI and this acquisition, I think it's pretty reasonable to wait to see how this turns out before rushing to final judgment.
Everything I've seen from Astral and Charlie indicates they're brilliant, caring, and overall reasonable folks. I think it's unfair to jump to call them sell-outs and cast uv and the rest as doomed projects.
We always "wait and see" and it always turns out terrible. Even if the original founders stay on, eventually they will get pushed out when their morals conflict with company goals. Wont happen overnight, but uv will enshitify eventually.
Interesting acquihire. I would have assumed MS would have snagged them (until their __layoffs__ last year). My gut is that this is more for Python expertise, and ruff/ty knowledge of linting code than uv...
I'm a heavy user and instructor of uv. I'm teaching a course next week that features uv and rough (as does my recent Effective Testing book).
Interesting to read the comments about looking for a change. Honestly, uv is so much better than anything else in the Python community right now. We've used projects sponsored by Meta (and other questionable companies) in the past. I'm going to continue enjoying uv while I can.
why? lot's of good work came to Python by people who were sponsored by big tech companies. make Python better for them, and for a lot of other people too.
(sure, it's a bit different than contributing to CPython, but I'd argue not that different)
It is VERY different. One company now has complete control of the activities of the team developing these tools. Contributing to Python (money or time) gets you some influence, but doesn't allow you to dictate anything - there's still a team making the decisions.
uv and ruff are one of the best things that happened in the python ecosystem the last years. I hope this acquisition does not put them on a path to doom.
i feel like moves like this make it even harder for new open-source tools to break through. there's already evidence that LLMs are biased toward established tools in their training data (you can check it here https://amplifying.ai/research/claude-code-picks). when a dominant player acquires the most popular toolchain in an ecosystem, that bias only deepens. not because of any skewing, but because the acquired tools get more usage, more documentation, more community content. getting a new project into model weights at meaningful scale is already really hard. acquisitions like this make it even harder.
I'm also concerned about this, but I feel as though uv and ruff's explosive growth happening alongside and despite that of LLMs demonstrates that it's not a show-stopper. I vividly recall LLM coding agents defaulting to pip/poetry and black/flake8, etc. for new projects. It still does that to some extent, but I see them using uv and ruff by default -- without any steering from me -- with far greater frequency.
Perhaps it's naive optimism, but I generally have hope that new and improved tools will continue to gain adoption and shine through in the training data, especially as post-training and continual learning improve.
Would there be any interest in me fixing the bugs in Pyflow and getting it updated to install newer python versions? It's almost identical to uv in concept, but I haven't touched it in 6 years.
Astral has demonstrated that there is desire for this sort of "just works" thing, which I struggled with, and led me to abandoning it. (I.e.: "pip/venv/conda are fine, why do I want this?", despite my personal experience with those as high-friction)
As a non python dev I really thought UV and TY are great tools and liked their approaches but I don't know how good it is that they are privately held... no a fan
Technically the tools are not privately held, they're OSS with a permissive licence. It's just that the bulk of work was done by them. The acquisition (ostensibly) changes none of that
I thought some more about it, and unfortunately it makes sense. IIRC there were several "insider" blogposts from OpenAI that said something along the lines of "Yeah almost every service we write is FastAPI"
They are not trying to buy developer goodwill, they are trying to catch up with Antrophic in terms of getting those B2B contracts, which is currently the most realistic path towards not running out of money.
1. The Register reports OpenAI is well ahead of Anthropic in B2B contracts. It's Anthropic playing catch-up, not OpenAI.
2. In any case, the announcement strongly suggests that customer acquisition had little to do with this. The stated purpose of the acquisition, as I read it, is an acquisition (plus acquihire?) to bolster their Codex product.
3. But if they were hoping for some developer goodwill as a secondary effect... well, see my note above.
After investing a bunch in converting my projects to, and evangelizing uv, I feel betrayed. I smell stability troubles ahead. Should've stuck to Conda.
I'm confused as to what will happen to their platform product which was in closed beta - pyx. Since they no longer need to worry about money (I assume) they no longer need to chase after enterprise customers?
"OpenAI is focusing employee and investor attention on its enterprise business as the artificial intelligence startup gears up to go public, potentially by the end of the year, CNBC has learned."
Assuming things start getting weird about 18 months from now, poetry and uv have very similar semantics, so 18 months of comically faster workflows sounds nice.
I see people in this thread complain about the acquisition but the source code of uv is right there [1]. Fork it and move on. If ClosedAI enshittifies uv, gather with a bunch of other people and prop up a new version.
It was pretty obvious that some sort of acquisition was imminent. Astral is vc-funded and has to somehow generate returns for investors. An IPO is extremely unlikley in this market.
Why? Github is already owned by Microsoft, who are deep in with OpenAI. And what worth would a Github-clone even have for the world? It's not like there is any important innovation left in that space at the moment, or are there any?
Company that repeatedly tells you software developers are obsoleted by their product buys more software developers instead of using said product to create software. Hmm.
I work at OpenAI. Software developers are not obsoleted by Codex or Claude Code, nor will they be soon.
For us, Codex is a massive productivity booster that actually increases the value of each dev. If you check our hiring page, you’ll see we are still hiring aggressively. Our ambitions are bigger than our current workforce, and we continue to pay top dollar for talented devs who want to join us in reshaping how silicon chips provide value to humans.
Akin to how compilers reduced the demand for assembly but increased the demand for software engineering, I see Codex reducing the demand for keystrokes but increasing the demand for software engineering. Codex can read and write code faster than you or me, but it still lacks a lot of intelligence and wisdom and context to do the job autonomously.
"Because they can", after spending a bunch of money to acquire an existing solution. I suppose when it's other people's money, there's no problem with burning it by the fistful. Apparently, "because they can" does not extend to building solutions with their own product.
A tool might not be the best tool to build itself, doesn't mean it is not good.
You don't use a screwdriver to craft screwdrivers. Doesn't mean screwdrivers are inherently bad
> Second, to our investors, especially Casey Aylward from Accel, who led our Seed and Series A, and Jennifer Li from Andreessen Horowitz, who led our Series B
They are buying out investors, it's like musical chairs.
The liquidity is going to be better on OpenAI, so it pleases everyone (less pressure from investors, more liquidity for investors).
Are you implying that the revenue multiple on this acquisition is lower than openAIs and that they'd be making money by acquiring and folding into their valuation multiple? I think that's not the case and I would wager non existent.
This was an acquihire (the author of ripgrep, rg, which codex uses nearly exclusively for file operations, is part of the team at Astral).
So, 99% acquihire , 1% other financial trickery. I don't even know if Astral has any revenue or sells anything, candidly.
It means the company almost reached their runway, so all these employees would have to find a job.
It's a very very good product, but it is open-source and Apache / MIT, so difficult to defend from anyone just clicking on fork. Especially a large company like OpenAI who has massive distribution.
Now that they hired the employees, they have no more guarantees than if they made a direct offer to them.
So I don't see how the acquisition is collateral - it's an acquihire plain and simple, if anything else it would be supply chain insurance as they clearly use a lot of these tools downstream. As you noted the licensing is extremely permissive on the tools so there appears to be very little EV there for an acquirer outside of the human capital building the tools or building out monetized features.
I'm not too plugged into venture cap on opensource/free tooling space but raising 3 rounds and growing your burn rate to $3M/yr in 24 months without revenue feels like a decently risky bag for those investors and staff without a revenue path or exit. I'd be curious to see if OpenAI went hunting for this or if it was placed in their lap by one of the investors.
OpenAI has infamously been offering huge compensation packages to acquire talent, this would be a relative deal if they got it at even a modest valuation. As noted, codex uses a lot of the tooling that this team built here and previously, OpenAI's realization that competitors that do one thing better than them (like claude with coding before codex) can open the door to getting disrupted if they lapse - lots of people I know are moving to claude for non-coding workflows because of it's reputation and relatively mature/advanced client tools.
A brief note, your numbers are way off here — Astral subsequently raised a Series A and B (as mentioned in the blog post) but did not announce them. We were doing great financially.
It seems you are one of the most active contributors there.
I would sincerely have understood better (and even wished) if OpenAI made you a very generous offer to you personally as an individual contributor than choose a strategy where the main winners are the VCs of the purchased company.
Here, outside, we perceive zero to almost no revenues (no pricing ? no contact us ? maybe some consulting ?) and millions burned.
Whether it is 4 or 8 or 15M burned, no idea.
Who's going to fill that hole, and when ? (especially since PE funds have 5 years timeline, and company is from 2021).
The end product is nice, but as an investor, being nice is not enough, so they must have deeper motives.
I feel like it's pretty easy to predict what OpenAI is trying to do. They want their codex agent integrated directly into the most popular, foundational tooling for one of the world's most used and most influential programming languages. And, vice versa, they probably want to be able to ensure that tooling remains well-maintained so it stays on top and continues to integrate well with their agent. They want codex to become the "default" coding agent by making it the one integrated into popular open source software.
I think this is more about `ruff` than `uv`. Linting is all about parsing the code into something machines can analyze, which to me feels like something that could potentially be useful for AI in a similar way to JetBrains writing their own language parsers to make "find and replace" work sanely and what not.
I'm sort of wondering if they're going to try to make a coding LLM that operates on an AST rather than text, and need software/expertise to manage the text->AST->text pipeline in a way that preserves the structure of your files/text.
Writing a literal parser isn’t too hard (and there’s presumably an existing one in the source code for the language).
Writing something that understands all the methods that come in a Django model goes way beyond parsing the code, and is a genuine struggle in language where you can’t execute the code without worrying about side effects like Python.
Ty should give them a base for that where the model is able to see things that aren’t literally in the code and aren’t in the training data (eg an internal version of something like SQLAlchemy).
This just seems like panic M&A. They know they aren’t on track to ever meet their obligations to investors but they can’t actually find a way to move towards profitability. Hence going back to the VC well of gambling obscene amounts of money hoping for a 10x return… somehow
The dev market? Anthropic's services are arguably more popular among a certain developer demographic.
I guess this move might end up in a situation where the uv team comes up with some new agent-first tooling, which works best or only with OAI services.
OpenAI could vibe-code marketshare by introducing bias into ChatGPT's responses and recommendations. "– how to do x in Python? – Start by installing OpenAI-UV first..."
This. It's valuable b/c if you have many thousands of python devs using astral tooling all day, and it tightly integrates with subscription based openai products...likelihood of openai product usage increases. Same idea with the anthropic bun deal. Remains to be seen what those integrations are and if it translates to more subs, but that's the current thesis. Buy user base -> cram our ai tool into the workflow of that user base.
IMO, they are buying business just to put them down later to avoid potential competition. The recipe is not new, it has been practiced by Google/Microsoft for many years.
I have no idea but for sure they did their homework before making this step. I suppose they're grabbing these business just to stay ahead, in order to prevent the competitors to buy those instead.
"Fascism" is when military. The more military, the more fascist. According to this metric, the USSR / DDR with its "anti-fascist wall" was super extra fascist because they were armed to the teeth.
they were definitely totalitarian, slightly different mix of ideology. Fascist is a fairly good description here, it describes close collaboration of government with corporations to advance national goals. US had somewhat fascist tendencies for a long time now.
This might not be bad as long as Astral is allowed to continue to work on improving ty, uv and ruff. I do worry about they'll get distracted by their Codex job duties though.
I can get pyflow back to a maintained state and iron out the bugs if that would help. It's the same concept as uv, just kind of buggy and I haven't touched it in 6 years.
The Bun acquisition made a little sense, Boris wanted Daddy Jarred to come clean up his mess, and Jarred is 100% able to deliver.
This doesn't make as much sense. OpenAI has a better low level engineering team and they don't have a hot mess with traction like Anthropic did. This seems more about acquiring people with dev ergonomics vision to push product direction, which I don't see being a huge win.
They do have a hot mess with traction amongst developers. Codex is far behind Claude Code (in both the GUI and TUI forms), and OpenAI's chief of applications recently announced a pivot to focus more on "productivity" (i.e. software and enterprise verticals) because B2B yields a lot more revenue than B2C.
I think it’s impossible to predict what will happen with this new trend of “large AI company acquires company making popular open source project”. The pessimist in me says that these products will either be enshittified over time, killed when the bubble bursts, or both. The pragmatist in me hopes that no matter what happens, uv and ruff will survive just like how many OSS projects have been forked or spun out of big companies. The optimist in me hopes that the extra money will push them to even greater heights, but the pessimist and the pragmatist beat the optimist to death a long time ago.
It’s open source. If you want it to go in a different direction fork it and take it in that direction. Instead of the optimist, the pessimist, and the pragmatist the guy you need is the chap who does some work.
If they just give Astral money to keep going, great, but I have difficulty believing they would be so altruistic. This is quite an upsetting acquisition.
So instead of finally building an enterprise-grade package manager where you could pay for validated, verified and secure packages, we're going to vibe project management and let a slop-spiggot fill the trough. Brilliant. Incredibly pleased that the last sane tools in the entire python ecosystem are getting gutted to discourage the last few non-braindead devs from bothering.
There is nothing wrong with big money backing, often is necessary for long term bets, but rug pulling is a serious threat. VC funded open source has become a pattern/playbook.
It would have been fine if the Astral team was acqui-hired and uv, ruff, etc were donated to the PSF or Linux Foundation for further sponsorship and support.
But the pressure because they raised VC funding, I would imagine Astral needed an actual exit and OpenAI saw Astral's tools as an asset.
Well shit, I feel betrayed. This is exactly the opposite of what I thought Charlie's goals were. I thought he was focused on making the Python ecosystem better.
I am not even sure how to feel about this news but feel a bit disappointed as a user even if I might be happy for the devs that they got money for such project but man, I would've hoped any decent company could've bought them out rather than OpenAI of all things.
Maybe OpenAI wants to buy these loved companies to lessen some of the hate but what its doing is lessening the love that we gave to corporations like astral/uv sadly, which is really sad because uv is/(was?) so cool but now we don't know where this tool might be headed next given its in the hands of literally OpenAI :(
Because Jetbrain strategy wasn't to burn money with free tools to eventually exit with the jackpot. They have been profitable for over a decade, simply asking users to pay a fair price for great product.
It would seem to me that purchasing a piece of software as an AI company is just an outright admission that they could not generate an equivalent piece of software for a better price?
If it was cheaper to use their internal AI to create these tools, they would.
A concern:
More and more plainly, OpenAI and Anthropic are making plays to own (and lease) the "means of production" in software. OK - I'm a pretty happy renter right now.
As they gobble up previously open software stacks, how viable is it that these stacks remain open? It seems perfectly sensible to me that these providers and their users alike have an interest in further centralizing the dev lifecycle - eg, if Claude-Code or Codex are interfaces to cloud devenvs, then the models can get faster feedback cycles against build / test / etc tooling.
But when the tooling authors are employees of one provider or another, you can bet that those providers will be at least a few versions ahead of the public releases of those build tools, and will enjoy local economies of scale in their pipelines that may not be public at all.
I have personally interacted with migrating features and I have also experienced where there is an internal fork of CPython from more than one group. It isn't really necessarily that they are a few features ahead what I have seen is that they a set of targeted features where they do their best judgement on what they can now leverage. That doesn't necessarily mean its better for everyone.
My experience is that I have personally committed code from Cinder (CPython fork internally from Meta) back into CPython and it was determined that features didn't align with CPython and this isn't some kind of dig between each project at all. Also, at a large mega corporation nearly all groups that use critical software with high complexity they all will have internal forks. I'm not sure what exactly what UV will have added on internally but instead of versions I think that you will have patch collections that might be beneficial to OpenAI but not necessarily for everyone. I hope that OpenAI will interact with the rest of the community and those internal patches can be ported into the overall system if it provides benefit.
It’s a small tool shop building a tiny part of the Python ecosystem, let’s not overstate their importance. They burned through their VC money and needed an exit and CLI tool chains are hyped now for LLMs, but this mostly sounds like an acquihire to me. Dev tools are among the hardest things to monetize with very few real winners, so good for them to get a good exit.
Small tool shop, burning VC money, true. "Tiny part of the Python ecosystem" is an understatement given how much impact uv has made alone.
Just a tiny project with over 100 million downloads every month, over 4 million every day. No big deal. Just a small shop, don't overstate its importance.
https://pypistats.org/packages/uv
Do you have any statistics for that?
uv has almost 2x the number of monthly downloads Poetry has.
- https://pypistats.org/packages/poetry - https://pypistats.org/packages/uv
In the 2024 Python developer survey, 18% of the ecosystem used Poetry. When I opened this manifold question[0], I'm pretty sure uv was about half of Poetry downloads.
Estimating from these numbers, probably about 30% of the ecosystem is using `uv` now. We'll get better numbers when the 2025 Python developer survey is published.
Also see this: https://biggo.com/news/202510140723_uv-overtakes-pip-in-ci-u...
[0]: https://manifold.markets/JeremiahEngland/will-uv-surpass-poe...
anecdotally every place ive worked at has switched over and never looked back.
Same. It's game-changing - leaps and bounds above every previous attempt to make Python's packaging, dependency management, and dev workflow easy. I don't know anyone who has tried uv and not immediately thrown every other tool out the window.
been in the python game a long time and i've seen so many tools in this space come and go over the years. i still rely on good ol pip and have had no issues. that said, we utilize mypy and ruff, and have moved to pyproject etc to remotely keep up with the times.
uv solved it, it will be the only tool people use in 2 more years. if you’re a python shop / expert then you can do pip etc but uv turned incidental python + deps from a huge PITA for the rest of us, to It Just Works simplicity on the same level or better than Golang.
I don't want software on my computer, that just downloads and installs random stuff. This is the job of the OS in particular the package manager.
Do you not use non-OS package managers?
If not, do you develop software with source dependencies (go, java, node, rust, python)? If so, how do you handle acquiring those dependencies—by hand or using a tool?
What’s the point of constraining oneself to what is in the OS package manager? I like to keep my dependencies up to date. The versions in the OS package manager are much older.
And let’s say you constrain yourself to your OS package manager. What about the people on different distros? Their package managers are unlikely to have the exact same versions of your deps that your OS has.
Then don't use it?
As a point of order: Astral did not, in fact, burn through its VC money. I agree that dev tools are difficult to monetize, though.
(Source: I'm an Astral employee.)
Finally someone competent to answer the crucial question. Taken into account the enormous amount of excellent work you did, and the fact that dev tools are hard to monetize, what was your strategy?
uv is the best thing to happen to package management in Python.
It's not perfect, but it is light-years better than what preceded it.
I jumped ship to it and have not looked back. (So have many of my clients).
uv and ruff is not tiny part anymore, its growing fast
In the many darker timelines that one can extrapolate, capturing essential tech stacks is just a pre-cursor to capturing hiring.
Once we start seeing Open AI and Anthropic getting into the certifications and testing they'll quickly become the gold standard. They won't even need to actually test anyone. People will simply consent to having their chat interactions analyzed.
The models collect more information about us than we could ever imagine because definitionally, those features are unknown unknowns for humans. For ML, the gaps in our thinking carry far richer information about is than our actual vocabularies, topics of interest, or stylometric idiosyncrasies.
I'm just here for the day the weights will leak and all the moat will vanish unless you're a Google or Apple and can offer the compute at scale to sustain it.
It's kinda crazy to think we're living in borrowed times in some ways, lots of unknown unknowns and speculations right now, but I think stuff is just gonna shuffle around.
It's not any different from the launch of the FSF. There's a simple solution. If you don't want your lunch eaten by a private equity firm, make sure whatever tool you use is GPL licensed.
> If you don't want your lunch eaten by a private equity firm, make sure whatever tool you use is GPL licensed.
1. For the record: the GPL is entirely dependent on copyright.
2. If AI "clean-room" re-implementations are allow to bypass copyright/licenses, the GPL won't protect you.
> If AI "clean-room" re-implementations are allow to bypass copyright/licenses, the GPL won't protect you.
Isn't that the same for the obligations under BSD/MIT/Apache? The problem they're trying to address is a different one from the problem of AI copyright washing. It's fair to avoid introducing additional problems while debunking another point.
Maybe I'm reading wrong here, but what's the implication of the clean room re-implementations? Someone else is cloning with a changed license, but if I'm still on the GPL licensed tool, how am I "not protected"?
1. Company A develops Project One as GPLv3
2. BigCo bus Company A
3a. usually here BigCo should continue to develop Project One as GPLv3, or stop working on it and the community would fork and it and continue working on it as GPLv3
3b. BigCo does a "clean-room" reimplementation of Project One and releases it under proprietary licence. Community can still fork the older version and work on it, but BigCo can continue to develop and sell their "original" version.
There's basically no different between GPL and BSD in that case.
The biggest scam the mega-clouds and the Githubs ever pulled was convincing open source developers that the GPL was somehow out of vogue and BSD/MIT/Apache was better.
All so they could just vacuum it all up and resell it with impunity.
You probably mean AGPL. Companies hated GPL from the start and nothing has changed to this day. But the cloud is specifically against AGPL.
I don't remember GitHub or Amazon advocating MIT over GPL.
Feel free to prove me wrong by pointing out this massive amount of advocacy from "mega-clouds" that changed people's minds.
The ads, the mailing list posts, social media comments. Anything at all you can trace to "mega-clouds" execs.
https://choosealicense.com/
https://choosealicense.com/about/
> "GitHub wants to help developers choose an open source license for their source code."
This was built by GitHub Inc a very very long time ago.
>This was built by GitHub Inc a very very long time ago.
So long ago, in fact, that it was five years before their acquisition by Microsoft.
I remember a somewhat prominent dev in the DC area putting on Twitter around 2012 or so something like "I do plenty of open source coding and I don't put a fucking license on it" and it stuck with me for all these years that it was a weird stance to take.
John Carmack said that about a week ago.
Huh? When you deploy something in the cloud, you don't have to share your GPL'ed stuff either. Google doesn't.
If it ever goes bad, well I hope that that’s an impetus for new open source projects to be started — and with improvements over and lessons learned from incumbent technologies, right at the v1 of said projects.
If LLMs turn out to be such a force multiplier, the way to fight it is to ensure that there are open source LLMs.
I think the issue is that LLMs are a cash problem as much as they are a technical problem. Consumer hardware architectures are still pretty unfriendly to running models which are actually competitive to useful models so if you want to even do inference on a model that's going to reliably give you decent results you're basically in enterprise territory. Unless you want to do it really slowly.
The issue that I see is that Nvidia etc. are incentivised to perpetuate that so the open source community gets the table scraps of distills, fine-tunes etc.
You got me thinking that what's going to happen is some GPU maker is going to offer a subsidized GPU (or RAM stick, or ...whatever) if the GPU can do calculations while your computer is idle, not unlike Folding@home. This way, the company can use the distributed fleet of customer computers to do large computations, while the customer gets a reasonably priced GPU again.
The kinds of GPUs that are in use in enterprise are 30-40k and require a ~10KW system. The challenge with lower power cards is that 30 1k cards are not as powerful, especially since usually you have a few of the enterprise cards in a single unit that can be joined efficiently via high bandwidth link. But even if someone else is paying the utility bill, what happens when the person you gave the card to just doesn’t run the software? Good luck getting your GPU back.
The problem is even if an OSS had the resources (massive data centers the size of NYC packed with top end custom GPU kits) to produce the weights, you need enormous VRAM laden farms of GPUs to do inference on a model like Opus 4.6. Unless the very math of frontier LLMs changes, don’t expect frontier OSS on par to be practical.
There's already an ecosystem of essentially undifferentiated infrastructure providers that sell cheap inference of open weights models that have pretty tight margins.
If the open weights models are good, there are people looking to sell commodity access to it, much like a cloud provider selling you compute.
> you need enormous VRAM laden farms of GPUs to do inference on a model like Opus 4.6.
It's probably a trade secret, but what's the actual per-user resource requirement to run the model?
That would be accepting the framing of your class enemy, there is no reason to do that.
unless they are also pirate LLMs, I don't see how any open source project could have pockets deep enough for the datacenters needed to seriously contend
If it goes bad? It’s too late by that point. And how is open source going to compete with billions of investment dollars?
If AI tools are as good as the CEOs claim, we should have no friction towards building multiple open source alternatives very quickly. Unless of course, they aren’t as good as they are being sold as, in which case, we have nothing to worry about.
What would the new open source projects do differently from the "old" ones? I don't think you can forbid model training on your code if your project is open source.
Of course they're trying to capture existing tech stacks. The models themselves are plateauing (most advancement is coming from the non-LLM parts of the software), they took too much VC money so they need to make some of it back. So gobbling up wafers, software, etc... is the new plan for spending the money and trying to prevent catastrophic losses.
Honestly, for now they seem to be buying companies built around Open Source projects which otherwise didn't really have a good story to pay for their development long-term anyway. And it seems like the primary reason is just expertise and tooling for building their CLI tools.
As long as they keep the original projects maintained and those aren't just acqui-hires, I think this is almost as good as we can hope for.
(thinking mainly about Bun here as the other one)
And how likely is that?
Once you’re acquired you have to do what the boss says. That means prioritizing your work to benefit the company. That is often not compatible with true open source.
How frequently do acquired projects seriously maintain their independence? That is rare. They may have more resources but they also have obligations.
And this doesn’t even touch on the whole commodification and box out strategy that so many tech giants have employed.
But how does this work out in the long run, in the case of AGI?
If AGI becomes available, especially at the local and open-source level, shouldn't all these be democratized - meaning that the AGI can simply roll out the tooling you need.
After all, AGI is what all these companies are chasing.
Let us assume AGI never comes. I don't plan scenarios for when aliens land, why should I for AGI? It's not particularly close.
If it becomes too antagonistic, people will change. The desire to build things is larger than any given iron fist du jour. Just ask Oracle or IBM.
Could you say the same about the Chrome browser? Google is using it to EEE the web (Embrace, Extend and Extend it till it's a monstrosity that nobody else can manage). That's pretty antagonistic. But did people change?
Sample size: 1 but I use Arc browser. It's still webkit under the hood (and in maintenance mode now), though it's actually pretty good and last I checked had most of the baked in google stuff toggled-off by default
Explain to me how this is any different than Microsoft, Blackrock, Google, Oracle, Berkshire or any other giant company acquiring their way to market share?
This is a serious risk for the open source ecosystem and particularly the scientific ecosystem that over the last years has adopted many of these technologies. Having their future depend on a cap-ex heavy company that is currently (based on reporting) spending approx. 2.5 dollars to make a dollar of revenue and must have hypergrowth in the next years or perish is less than ideal. This should discourage anybody doing serious work to adopt more of the upcoming Astral technologies like ty and pyx. Hopefully, ruff and uv are large enough to be forked should (when) the time comes.
On the flip side, I'm not sure I ever saw a revenue plan or exit strategy for Astral other than acquihire. And most plausible bidders are unfortunate in one way or another.
Astral was building a private package hosting system for enterprise customers. That was their stated approach to becoming profitable, while continuing to fund their open source work.
Private package hosting sounds like a commodity that would be hard to differentiate.
A commodity yes, but could be wrapped in to work very nicely with the latest and greatest in python tooling. Remember, the only 2 ways to make money are by bundling and unbundling. This seems like a pretty easy bundling story.
Yeah you'd think so but somehow JFrog (makers of Artifactory) made half a billion dollars last year. I don't really understand that. Conda also makes an implausible amount of money.
From my understanding there are a lot of companies that need their own package repositories, for a variety of reasons. I listened to a couple podcasts where Charlie Marsh outlined their plans for pyx, and why they felt their entry into that market would be profitable. My guess is that OpenAI just dangled way more money in their faces than what they were likely to get from pyx.
Having a private package index gives you a central place where all employees can install from, without having to screen what each person is installing. Also, if I remember right, there are some large AI and ML focused packages that benefit from an index that's tuned to your specific hardware and workflows.
What would be the added value against JFrog or Nexus, for example?
that was never going to work, let's be honest
They could have joined projects like the Linux Foundation which try to not depend on any single donor, even though complete independence from big tech is not possible. I don't know the motivation behind Astral's approach, but this acquisition does leave a weird taste behind about how serious they were about truly open source software. Time will tell, I guess. (Edit: typo)
> I don't know the motivation behind Astral's approach, but this acquisition does leave a weird taste behind about how serious they were about truly open source software.
It was because Astral was VC funded.
https://astral.sh/blog/announcing-astral-the-company-behind-...
These tools are open source, if they lock them down the community will just fork them.
Nice idea in theory, in practice is how many folks down in Nebraska are going to show up.
This might be true for uv and ruff, and hopefully that will happen. But pyx is a platform with associated hosting and if successful would lock people into the Astral ecosystem, even if the code itself was open source.
I never adopted them, keep using mostly Python written stuff.
Either pay for the product, or use stuff that isn't dependent on VC money, this is always how it ends.
There are ways to independently fund open source projects, though. I have previously contributed to the Python Software Foundation and to individual open source maintainers through GitHub donations (which are not dependent on GitHub, as there are many alternatives). Projects like the Linux Foundation exist, too. And government funding, especially for scientific endeavors or where software is used to fulfill critical state tasks, is an option, too. I refuse to subject to the hypercommercialization of software and still believe in the principles behind open source.
Which is why I mentioned "....use stuff that isn't dependent on VC money...".
> I never adopted them, keep using mostly Python written stuff.
Maybe you use non-transitive pure Python dependencies, but it's likely that your tools and dependencies still rely on stuff in Rust or C (e.g.: py-cryptography and Python itself respectively).
I use mostly the batteries, given that the only purpose I have for Python, since version 1.6, is UNIX scripting tasks, beyond shell.
As mentioned multiple times, since my experience with Tcl and continuously rewriting stuff in C, I tend to avoid languages that don't come with JIT, or AOT, in the reference tooling.
I tend to work with Java, .NET, node, C++, for application code.
Naturally AI now changes that, still I tend to focus on approaches that are more classical Python with pip, venv, stuff written in C or C++ that is around for years.
Would single maintainers of critical open source projects be a better situation?
Are you not aware of foundations?
The issue is lack of money not lack of legal structure.
Consider ffmpeg. You can donate via https://www.ffmpeg.org/spi.html
How much money do they make from donations? I don't know but "In practice we frequently payed for travel and hardware."
Translation: nothing at all.
If such a fundamental project that is a revenue driver for so many companies, including midas-level rich companies like Google, can't even pay decent salaries for core devs from donations, then open source model doesn't work in terms of funding the work even at the smallest possible levels of "pay a reasonable market rate for devs".
You either get people who just work for free or businesses built around free work by providing something in addition to free software (which is hard to pull off, as we've seen with Bun and Astral and Deno and Node).
I don't know how to search for that report, can you share it?
UV_DISABLE_AGENT=1 UV_DISABLE_AI_HINTS=1 uv add
Not who I would've liked to acquire Astral. As long as OpenAI doesn't force bad decisions on to Astral too hard, I'm very happy for the Astral team. They've been making some of the best Python tooling that has made the ecosystem so much better IME.
If Codex’s core quality is anything to go by, it’s time to create a community fork of UV
Maybe they are being acquired to improve the quality of Codex.
The priorities of the tooling will change to help agents instead of human users directly. That's all that's happening.
Eh, if it turns out to be too bad I guess I’ll just end up switching back to pipenv, which is the closest thing to uv (especially due to the automatic Python version management, but not as fast).
Does pipenv download and install prebuilt interpreters when managing Python versions? Last I used it it relied on pyenv to do a local build, which is incredibly finicky on heterogenous fleets of computers.
Possibly the worst possible news for the Python ecosystem. Absolutely devastating. Congrats to the team
I hope they got paid, I will be very sad if they didn't at least get G5 money.
Curious how well upstream contributors or projects get contributed for these sort of headline-gathering acquisitions (probably not at all, unfortunately).
OpenClaw notably was built around Mario Zechner's pi[0]; uv I believe was highly adapted from Armin Ronacher's rye[1], and uses indygreg's python-build-standalone[2] for distributing Python builds (both of which were eventually transferred to Astral).
[0]: https://github.com/badlogic/pi-mono
[1]: https://github.com/astral-sh/rye
[2]: https://github.com/astral-sh/python-build-standalone
Yeah, no. there are many worse news than this.
In the worst case, Astral will stop developing their tools, someone else will pick them up and will continue polishing them. In the best case, they will just continue as they did until now, and nothing will really change on that front.
Astral is doing good work, but their greatest benefit for the ecosystem so far was showing what's possible and how it's down. Now everyone can take up the quest from here and continue. So any possible harm from here out will be not that deep, at worst we will be missing out on many more cool things they could have built.
On the other hand, we get to see what other thing will try to replace pip
What excites me about the OpenAI + Astral acquisition: Codex CLI, uv, and ruff are all written in Rust. Fast by design, and fully open source.
This has me thinking about VS Code and VS Codium. I've used VS Code for a while now, but recently grew annoyed at the increasingly prevalent prompts to subscribe to various Microsoft AI tools. I know you can make them go away, but if you bounce between different systems, and particularly deal with installing VS Code on a regular basis, it becomes annoying.
I started using VS Codium, and it feels like using VS Code before the AI hype era. I wonder if we're going to see a commercial version of uv bloated with the things OpenAI wants us all to use, and a community version that's more like the uv we're using right now.
My initial reaction was being weirdly sad about this and I don't fully understand why yet. I read the headline, clicked into the link, and just went noooooooo. I really like uv and I hope it continues to do well, congrats to the team though and hope everyone there gets a good outcome.
This is a weird pattern accross OpenAI/Anthropic to buy startups building better toolings.
I don't really see the value for OAI/Anthropic, but it's nice to know that uv (+ ty and many others) and Bun will stay maintained!
Somebody took a deeper look at Claude Code and claims to find evidence of Anthropic's PaaS offering [1]. There's certainly money to be made by offering a nice platform where "citizen developers" can push their code.
From Astral the (fast) linter and type checker are pretty useful companions for agentic development.
[1] https://x.com/AprilNEA/status/2034209430158619084
I wouldn't be surprised if Vercel were bought by Anthropic/OAI (but maybe it would be too expensive?)
No no - SpaceX/xAi must now buy Vercel so that we can deploy our bloated Next apps to space.
Next now renamed to Xext.
Nothing is too expensive. It will be a bidding war.
`uv agent` and `bun agent` in 3....2.....1....
Totally agree
The value for Anthropic / OAI is that they have a strong interest in becoming the "default" agent.
The one that you don't need to install, because it's already provided by your package manager.
I don't think this holds because we're talking about developers who know how to use a package manager, on a piece of software you have to install anyways. The friction of "uv add $other_llm_software" is too low for it to have a real impact.
I think they're more into the extra context they can build for the LLM with ruff/ty.
You fool think they are targeting developers with this purchase?
I don’t think they’re targeting the C suite with it, because they don’t use uv and Microsoft already has Copilot for the “it’s bad but bundled with stuff you’re already paying for” market.
Good that they got some money and a longer runaway, but I have my doubts the product will improve rather than be smothered to death.
Embrace, extend, extinguish. Time will tell.
They probably prompted for what they should do next and got this as a half-hallucinated response lol
> it's nice to know that uv (+ ty and many others) and Bun will stay maintained!
Depends if you think the bubble is going to pop, I suppose. In some sense, independence was insulation.
Isn't this something to do with their paid pyx(as opposed to ty/ruff etc) thingy?
I'm not so sure. I sort of wish they hadn't been acquired because these sort of acquihires usually result in stifling the competition while the incumbent stagnates. It definitely is an acquihire given OpenAI explicitly states they'll be joining the Codex team and only that their existing open-source projects will remain "maintained".
I mean they are “startups” on the way to mega-companies. They need internal tooling to match.
Not often that I audibly groan at a HN headline :-(
Same here. I’ve adopted uv across all of my Python projects and couldn’t be happier. ty looks very promising as well.
Probably inevitable, and I don’t blame the team, I just wish it were someone else.
Ty, Ruff, UV, all great tools I recently started really using and I couldn't be happier with them.
Sigh
I think, it may be the first time I am actually upset by acquire announcement. I am usually like "well, it is what it is", but this time it just feels like betrayal.
great for astral, sucks for uv. was nice to have sane tooling at least for a few years, thanks for the gift.
I really hope they don't kill off uv or turn it into some way to sell OpenAI services. But I suspect that's exactly what's going to happen :(
I don't know. yarn never really turned into a vehicle to sell Facebook, though you always kind of transiently knew it was FB that offered it. I imagine that sort of transient advertising is it's own value, too.
Time for the PSF to consider something inspired by uv as a native solution.
The core-adjacent people have completely failed to produce reasonable packaging tools for decades, why would you want another new tool from them?
It's a good news to me considering their open-source nature. If/when they go downhill there will be still the option to fork, and the previous work will still have been funded.
Now for those wondering who would fork and maintain it for free, that is more of a critic of FOSS in general.
Woah, first Anthropic buys Bun, now OpenAI Astral?
Seems like the big AI players love buying up the good dev tooling companies.
I hope this means the Astral folks can keep doing what they are doing, because I absolutely love uv (ruff is pretty nice too).
> I hope this means the Astral folks can keep doing what they are doing, because I absolutely love uv (ruff is pretty nice too).
That is definitely the plan!
Being in this industry for over 20 years probably jaded me a lot, I understand that's the plan but it's almost always the plan (or publicly stated as).
Only time will tell if it will not affect the ecosystem negatively, best of luck though, I really hope this time is different™.
I've been in the industry for similarly long, and I understand and sympathize with this view. All I can say is that _right now_, we're committed to maintaining our open-source tools with the same level of effort, care, and attention to detail as before. That does not change with this acquisition. No one can guarantee how motives, incentives, and decisions might change years down the line. But that's why we bake optionality into it with the tools being permissively licensed. That makes the worst-case scenarios have the shape of "fork and move on", and not "software disappears forever".
I personally get a lot of confidence in the permissive licensing (both in the current code quality, and the "backup plan" that I can keep using it in the event of an Astralnomical emergency); thank you for being open source!
Literally there is no public comment you are allowed to make that we haven't heard 100 times before.
Congratulations though!
JS vs Python wars, redux?
>Seems like the big AI players love buying up the good dev tooling companies.
Would be a good mustache-twirling cartoon villain tactics, you know, try to prevent advances in developer experience to make vibecoding more attractive =)
It also hints even The Big Guys can’t LLM their tooling fully, and that current bleeding edge “AI” companies are doing that IT thing of making IT for IT (ie dev components, tooling, etc), instead of conquering some entire market on one continent or the other…
Makes you really think about the true productivity. If these companies have the beyond cutting-edge unreleased models so best possible tools shouldn't they be able to poach just a few most important people for cheaper? And then those people could use AI to build new superior product in very fast time. There is also buying an userbase. But I wonder how the key talent purchase strategy would work in comparison...
You know it's absolutely going that way. That's the lifecycle of corporate strategy.
I love uv and the other tooling Astral has built. It really helped reinvigorate my love for Python over the last year.
Something like this was always inevitable. I just hope it doesn’t ruin a good thing.
Welp. I used to respect Astral. I hope someone responsible forks their Python tooling and maintains it. Ideally a foundation rather than a company.
Yeah, well, the fact is that every person who ever touches Python needed uv, but only Astral folks created it. So, nope, there's no one capable of filling the void, just accept that it's fucked now. The best die first.
As someone who loves Astral and hates OpenAI, this is making me pretty sad.
I am very unhappy about this. Astral tools like uv are key to my work/experimenting process. I think OpenAI sucks as a company.
That said, I hope the excellent Astral team got. good payday.
I don’t know who I would’ve like to see but them, buy OpenAI is not it. Sad day for uv, ruff and ty users.
The "commitment to open source" line in these press releases usually has a half-life of about 18 months before the telemetry starts getting invasive.
What happens when OpenAI’s burn dries up their cash?
They mysteriously gain a lot of government contracts.
In a completely unrelated event, Donald sues Sam for 10M$ for calling him old, Sam grudingly agrees to pay him 16M$ and a beer.
That's where taxpayers come in a the ultimate bagholder.
They get more money from investors, go public, or get bought.
Taxpayers bail them out.
$110B will surely last for at least a year.
That money is going directly to Jensen as quickly as possible to secure OpenAI's place in the delivery queue
The investment version of "can you climb up a falling ladder fast enough to not fall"
RAM prices go down. My hope though is that the period RAM prices stay up will put electron apps out of market.
All the vibe-coded webshitware these companies are putting out seems too be doing the opposite: it's all even more memory- and cycle-hungry than the webshit we were lovingly pooping out by hand for the last decade.
"We must be regulated to contain the nuclear bomb like power of our products. Oh look it escaped again!", etc
And so, more core functionality developers depend on becomes dependent on a continuing stream of billions in VC funding. What could go wrong?
The funding for the PSF goes into social activism, so private companies have to step up and fill the tooling gap.
Happy for the team, sad for users. I just don’t believe their work will continue under new ownership
I feel some "commoditize your complements" (Spolsky) vibes hearing about these acquisitions. Or, potentially, "control your complements"?
If you find your popular, expensive tool leans heavily upon third party tools, it doesn't seem a crazy idea to purchase them for peanuts (compared to your overall worth) to both optimize your tool to use them better and, maybe, reduce the efficacy of how your competitors use them (like changing the API over time, controlling the feature roadmap, etc.) Or maybe I'm being paranoid :-)
Reading this news only leaves me worried about long-term future of these open source tools.
I have long since found the VC model for open source questionable. If you are not selling popular enough direct enterprise support what is the model to actually make money.
Take ruff, I have used it, but I had no idea it even had a company behind it... And I must not be only one and it must not be only tool like it...
I'm into this.
Anthropic acquiring Bun, now OpenAI acquiring Astral. Both show the big labs recognize that great AI coding tools require great developer tooling, and they are willing to pay for it rather than build inferior alternatives. Good outcome for the teams.
Not exactly a great look for the "AGI is right around the corner" crowd — if the labs had it, they would not need to buy software from humans.
I'm assuming that they were buying great Rust devs (given codex is written in it).
Personally, I'd expect a few good years of stewardship, and then a decline in investment. I can only hope there are enough community members to keep things going by then.
While I -- like most other commenters -- am dubious of both OpenAI and this acquisition, I think it's pretty reasonable to wait to see how this turns out before rushing to final judgment.
Everything I've seen from Astral and Charlie indicates they're brilliant, caring, and overall reasonable folks. I think it's unfair to jump to call them sell-outs and cast uv and the rest as doomed projects.
Charlie's fine. OpenAI are the problem here. Similar situation to steipete. Happy for the person, sad for the tool/ecosystem/everyone else.
Not similar at all. One has been a miracle for the Python ecosystem, another was a small scale Twitter hype-fart.
We always "wait and see" and it always turns out terrible. Even if the original founders stay on, eventually they will get pushed out when their morals conflict with company goals. Wont happen overnight, but uv will enshitify eventually.
Interesting acquihire. I would have assumed MS would have snagged them (until their __layoffs__ last year). My gut is that this is more for Python expertise, and ruff/ty knowledge of linting code than uv...
I'm a heavy user and instructor of uv. I'm teaching a course next week that features uv and rough (as does my recent Effective Testing book).
Interesting to read the comments about looking for a change. Honestly, uv is so much better than anything else in the Python community right now. We've used projects sponsored by Meta (and other questionable companies) in the past. I'm going to continue enjoying uv while I can.
This will solve the problem of when the package you want to install doesn't exist yet.
I’ve been thinking about purchasing zsh myself
UV, Ruff, and Ty are all very good things, hopefully that doesn't change and gets better.
Mixed feelings, happy for the guy, he deserves it. Unhappy about whom he went with, though not sure if he had other buyers / offers in the mix?
This is your friendly PSA that pip-tools still exist.
https://github.com/jazzband/pip-tools
goddammit
https://jazzband.co/news/2026/03/14/sunsetting-jazzband
Ah but that's not a shiny new tool I can add to my cv /s
I like uv, but not sure this is a good path forward for the python ecosystem.
why? lot's of good work came to Python by people who were sponsored by big tech companies. make Python better for them, and for a lot of other people too.
(sure, it's a bit different than contributing to CPython, but I'd argue not that different)
It is VERY different. One company now has complete control of the activities of the team developing these tools. Contributing to Python (money or time) gets you some influence, but doesn't allow you to dictate anything - there's still a team making the decisions.
So begins the uv-Bun war.
This is why I still like to setup projects and environments with my own `make` `venv` and `pip`.
And this is why we don't use tools by VC funded corps.
uv and ruff are one of the best things that happened in the python ecosystem the last years. I hope this acquisition does not put them on a path to doom.
i feel like moves like this make it even harder for new open-source tools to break through. there's already evidence that LLMs are biased toward established tools in their training data (you can check it here https://amplifying.ai/research/claude-code-picks). when a dominant player acquires the most popular toolchain in an ecosystem, that bias only deepens. not because of any skewing, but because the acquired tools get more usage, more documentation, more community content. getting a new project into model weights at meaningful scale is already really hard. acquisitions like this make it even harder.
I'm also concerned about this, but I feel as though uv and ruff's explosive growth happening alongside and despite that of LLMs demonstrates that it's not a show-stopper. I vividly recall LLM coding agents defaulting to pip/poetry and black/flake8, etc. for new projects. It still does that to some extent, but I see them using uv and ruff by default -- without any steering from me -- with far greater frequency.
Perhaps it's naive optimism, but I generally have hope that new and improved tools will continue to gain adoption and shine through in the training data, especially as post-training and continual learning improve.
Fantastic for the team, huge fan for Ruff and Uv. Hope OpenAI continues with the OSS tooling and not introduce restrictive licensing.
Would there be any interest in me fixing the bugs in Pyflow and getting it updated to install newer python versions? It's almost identical to uv in concept, but I haven't touched it in 6 years.
Astral has demonstrated that there is desire for this sort of "just works" thing, which I struggled with, and led me to abandoning it. (I.e.: "pip/venv/conda are fine, why do I want this?", despite my personal experience with those as high-friction)
As a non python dev I really thought UV and TY are great tools and liked their approaches but I don't know how good it is that they are privately held... no a fan
Technically the tools are not privately held, they're OSS with a permissive licence. It's just that the bulk of work was done by them. The acquisition (ostensibly) changes none of that
Related (OpenAI announcement): https://news.ycombinator.com/item?id=47438716
This was pretty obvious to just about anyone tbh. FastAPI is probably next
I thought some more about it, and unfortunately it makes sense. IIRC there were several "insider" blogposts from OpenAI that said something along the lines of "Yeah almost every service we write is FastAPI"
Don't even joke
vcs gotta eat somehow, and iirc they were building a "fastapi cloud platform"
Happy for the devs, they deserve the presumably massive payout for the amount of value they’ve brought to the Python community.
F*CK. take everything from me why dontcha?
> I am so excited to keep building with you.
Fixed: I am so excited to take these millions of dollars.
I hope OpenAI realizes they cannot buy developer goodwill.
They are not trying to buy developer goodwill, they are trying to catch up with Antrophic in terms of getting those B2B contracts, which is currently the most realistic path towards not running out of money.
1. The Register reports OpenAI is well ahead of Anthropic in B2B contracts. It's Anthropic playing catch-up, not OpenAI.
2. In any case, the announcement strongly suggests that customer acquisition had little to do with this. The stated purpose of the acquisition, as I read it, is an acquisition (plus acquihire?) to bolster their Codex product.
3. But if they were hoping for some developer goodwill as a secondary effect... well, see my note above.
Goddamnit
Btw astral repo has Claude as one of its top contributors
I was hoping that uv and ruff were the ones. I guess Python has a curse.
After investing a bunch in converting my projects to, and evangelizing uv, I feel betrayed. I smell stability troubles ahead. Should've stuck to Conda.
Welp. Guess we just wait for the next package management tool to come around. Really thought uv was gonna be the one.
Good for Astral though I guess, they do great work. Just not optimistic this is gonna be good for python devs long term.
I'm confused as to what will happen to their platform product which was in closed beta - pyx. Since they no longer need to worry about money (I assume) they no longer need to chase after enterprise customers?
"OpenAI is focusing employee and investor attention on its enterprise business as the artificial intelligence startup gears up to go public, potentially by the end of the year, CNBC has learned."
https://www.cnbc.com/2026/03/17/openai-preps-for-ipo-in-2026...
to be expected at some point, but for the independence and best interest of the Python ecosystem, I don't think it's a plus.
Should I freeze my plans to migrate from `poetry` to `uv` at "${WORK}"?
Assuming things start getting weird about 18 months from now, poetry and uv have very similar semantics, so 18 months of comically faster workflows sounds nice.
Sure, why not
these (uv and bun) are not acquihires, they're acqui-rootaccess
It should have been FastAPI instead.
I see people in this thread complain about the acquisition but the source code of uv is right there [1]. Fork it and move on. If ClosedAI enshittifies uv, gather with a bunch of other people and prop up a new version.
[1] https://github.com/astral-sh/uv
It was pretty obvious that some sort of acquisition was imminent. Astral is vc-funded and has to somehow generate returns for investors. An IPO is extremely unlikley in this market.
I'd expect OpenAi to make some type of Github clone next, perhaps with Astral, or maybe with jujutsu.
Why? Github is already owned by Microsoft, who are deep in with OpenAI. And what worth would a Github-clone even have for the world? It's not like there is any important innovation left in that space at the moment, or are there any?
Who advises on these acquisitions?
Or are they just using a dartboard?
It’s meant to be bought so at least no more guessing.
Ant is building their app distribution platform, so no wonder OpenAI thinking the same, it will only surprise me if they move so slow.
nooooooooooooooo god why. I loved uv. just why
Company that repeatedly tells you software developers are obsoleted by their product buys more software developers instead of using said product to create software. Hmm.
I work at OpenAI. Software developers are not obsoleted by Codex or Claude Code, nor will they be soon.
For us, Codex is a massive productivity booster that actually increases the value of each dev. If you check our hiring page, you’ll see we are still hiring aggressively. Our ambitions are bigger than our current workforce, and we continue to pay top dollar for talented devs who want to join us in reshaping how silicon chips provide value to humans.
Akin to how compilers reduced the demand for assembly but increased the demand for software engineering, I see Codex reducing the demand for keystrokes but increasing the demand for software engineering. Codex can read and write code faster than you or me, but it still lacks a lot of intelligence and wisdom and context to do the job autonomously.
They said it'll be good enough in two weeks, give them some time!
Which year was that?
Between when they said VR would be as common as TVs in two years, and before Musk said we'd be on mars in 5 years
All of them
They're not buying developers, they are buying the whole ecosystem to produce software. Still aligned with their original message.
If the product did what it was advertised to do, they could simply build their own ecosystem for producing software and train the model to use it.
Or, they could use a battle-proven existing solution because they can.
"Because they can", after spending a bunch of money to acquire an existing solution. I suppose when it's other people's money, there's no problem with burning it by the fistful. Apparently, "because they can" does not extend to building solutions with their own product.
When someone at work talks about all software devs being replaced I link them to the Anthropic career pages.
They're writing the software to end all softwares!
And, they buy a company writing tooling for Python in not Python.
A tool might not be the best tool to build itself, doesn't mean it is not good. You don't use a screwdriver to craft screwdrivers. Doesn't mean screwdrivers are inherently bad
As good as the team is, that's not what they're buying in this case.
What are they buying?
> Second, to our investors, especially Casey Aylward from Accel, who led our Seed and Series A, and Jennifer Li from Andreessen Horowitz, who led our Series B
They are buying out investors, it's like musical chairs.
The liquidity is going to be better on OpenAI, so it pleases everyone (less pressure from investors, more liquidity for investors).
The acquisition is just a collateral effect.
Are you implying that the revenue multiple on this acquisition is lower than openAIs and that they'd be making money by acquiring and folding into their valuation multiple? I think that's not the case and I would wager non existent.
This was an acquihire (the author of ripgrep, rg, which codex uses nearly exclusively for file operations, is part of the team at Astral).
So, 99% acquihire , 1% other financial trickery. I don't even know if Astral has any revenue or sells anything, candidly.
They raised 4M USD, they have 26 full-time employees (they pay 120<->200K / yr, cf https://pitchbook.com/profiles/company/523411-93 ).
It means the company almost reached their runway, so all these employees would have to find a job.
It's a very very good product, but it is open-source and Apache / MIT, so difficult to defend from anyone just clicking on fork. Especially a large company like OpenAI who has massive distribution.
Now that they hired the employees, they have no more guarantees than if they made a direct offer to them.
So I don't see how the acquisition is collateral - it's an acquihire plain and simple, if anything else it would be supply chain insurance as they clearly use a lot of these tools downstream. As you noted the licensing is extremely permissive on the tools so there appears to be very little EV there for an acquirer outside of the human capital building the tools or building out monetized features.
I'm not too plugged into venture cap on opensource/free tooling space but raising 3 rounds and growing your burn rate to $3M/yr in 24 months without revenue feels like a decently risky bag for those investors and staff without a revenue path or exit. I'd be curious to see if OpenAI went hunting for this or if it was placed in their lap by one of the investors.
OpenAI has infamously been offering huge compensation packages to acquire talent, this would be a relative deal if they got it at even a modest valuation. As noted, codex uses a lot of the tooling that this team built here and previously, OpenAI's realization that competitors that do one thing better than them (like claude with coding before codex) can open the door to getting disrupted if they lapse - lots of people I know are moving to claude for non-coding workflows because of it's reputation and relatively mature/advanced client tools.
A brief note, your numbers are way off here — Astral subsequently raised a Series A and B (as mentioned in the blog post) but did not announce them. We were doing great financially.
(I work at Astral)
It seems you are one of the most active contributors there.
I would sincerely have understood better (and even wished) if OpenAI made you a very generous offer to you personally as an individual contributor than choose a strategy where the main winners are the VCs of the purchased company.
Here, outside, we perceive zero to almost no revenues (no pricing ? no contact us ? maybe some consulting ?) and millions burned.
Whether it is 4 or 8 or 15M burned, no idea.
Who's going to fill that hole, and when ? (especially since PE funds have 5 years timeline, and company is from 2021).
The end product is nice, but as an investor, being nice is not enough, so they must have deeper motives.
> They raised 4M USD
What was their pitch?
I can see why the former investors and Astral founders would like that, what I don't see is what OpenAI get out of the deal.
mindshare and a central piece of the python package management ecosystem.
Most popular product on the planet acquires a random python packaging org for mindshare? What am I not seeing here?
I feel like it's pretty easy to predict what OpenAI is trying to do. They want their codex agent integrated directly into the most popular, foundational tooling for one of the world's most used and most influential programming languages. And, vice versa, they probably want to be able to ensure that tooling remains well-maintained so it stays on top and continues to integrate well with their agent. They want codex to become the "default" coding agent by making it the one integrated into popular open source software.
This makes much more sense as an zoom-buys-keybase style acquihire. I bet within a month the astral devs will be on new projects.
Bundling codex with uv isnt going to meaningfully affect the number of people using it. It doesnt increase the switching costs or anything.
"uv" is a very widely used tool in the Python ecosystem, and Python is important to AI. Calling it "a random Python packaging org" seems a bit unfair.
I think this is more about `ruff` than `uv`. Linting is all about parsing the code into something machines can analyze, which to me feels like something that could potentially be useful for AI in a similar way to JetBrains writing their own language parsers to make "find and replace" work sanely and what not.
I'm sort of wondering if they're going to try to make a coding LLM that operates on an AST rather than text, and need software/expertise to manage the text->AST->text pipeline in a way that preserves the structure of your files/text.
Writing a parser is not that much of work to buy a company in order to do it. Piggybacking on LSP servers and treesitter would be more efficient.
Writing a literal parser isn’t too hard (and there’s presumably an existing one in the source code for the language).
Writing something that understands all the methods that come in a Django model goes way beyond parsing the code, and is a genuine struggle in language where you can’t execute the code without worrying about side effects like Python.
Ty should give them a base for that where the model is able to see things that aren’t literally in the code and aren’t in the training data (eg an internal version of something like SQLAlchemy).
What you're not seeing, edited inline, is:
Not-most popular LLM software development product on the planet acquires most popular/rapidly rising python packaging org for mindshare.
This just seems like panic M&A. They know they aren’t on track to ever meet their obligations to investors but they can’t actually find a way to move towards profitability. Hence going back to the VC well of gambling obscene amounts of money hoping for a 10x return… somehow
The dev market? Anthropic's services are arguably more popular among a certain developer demographic.
I guess this move might end up in a situation where the uv team comes up with some new agent-first tooling, which works best or only with OAI services.
One of the popular products on the planet acquires the most popular python packaging org
I didn't know Claude bought Astral! /S
Why can't they just vibe code a uv replacement?
They can, everyone can.
Good luck vibe coding marketshare for your new tool.
OpenAI could vibe-code marketshare by introducing bias into ChatGPT's responses and recommendations. "– how to do x in Python? – Start by installing OpenAI-UV first..."
This. It's valuable b/c if you have many thousands of python devs using astral tooling all day, and it tightly integrates with subscription based openai products...likelihood of openai product usage increases. Same idea with the anthropic bun deal. Remains to be seen what those integrations are and if it translates to more subs, but that's the current thesis. Buy user base -> cram our ai tool into the workflow of that user base.
But new tools (like uv) start with no market share.
Why would that marketshare be valuable?
IMO, they are buying business just to put them down later to avoid potential competition. The recipe is not new, it has been practiced by Google/Microsoft for many years.
What competition was OpenAI likely to face from a team working on fast Python tooling?
I have no idea but for sure they did their homework before making this step. I suppose they're grabbing these business just to stay ahead, in order to prevent the competitors to buy those instead.
Sitting on cash as a company also looks bad to investors
uv
They probably have retention issues, due to selling out to fascism recently.
https://www.cnbc.com/2026/03/03/openai-sam-altman-pentagon-d...
I know I stopped using them.
And buying a niche developer tool is helping with that?
i think the point that comment is making is that it's an acquihire, that they bought it to poach the developers
which AI company hasn't?
"Fascism" is when military. The more military, the more fascist. According to this metric, the USSR / DDR with its "anti-fascist wall" was super extra fascist because they were armed to the teeth.
they were definitely totalitarian, slightly different mix of ideology. Fascist is a fairly good description here, it describes close collaboration of government with corporations to advance national goals. US had somewhat fascist tendencies for a long time now.
This might not be bad as long as Astral is allowed to continue to work on improving ty, uv and ruff. I do worry about they'll get distracted by their Codex job duties though.
How are they acquiring it without "open" in their name?
I (along with many others) always thought that Astral being VC backed is going to lead to a future disappointment for the community.
I don't understand how anyone is surprised at this point. VC project trying to build a brand just isn't going to lead to some utopic community.
Not surprised at all on this. I've been really suspicious about how hard `uv` was being pushed in 24/25.
I think the push has been entirely organic. Compared to existing tooling, uv is fantastically fast.
One of the bigger pain points I’ve faced in Python is dependency resolution. conda could take 30-60 minutes in some cases. uv took seconds.
A serious quality of life improvement.
"was being pushed" ... by whom? I think there's widespread grassroots support for it because it's a good tool.
Hey now, I was a completely organic shill! I worked for free!
uv and ruff are incredible tools for python development, and I've loved my time using ty. This acquisition is absolutely terrible.
Why do I feel uneasy about this?
Wtf!? Is this an early April's fools? I've been recommending astral tools left and right, Looks like I'm out a good chunk of social capital on that.
Who's organizing a fork, or is python back to having only shitty packaging available? :(
I can get pyflow back to a maintained state and iron out the bugs if that would help. It's the same concept as uv, just kind of buggy and I haven't touched it in 6 years.
Whoa, So Sam and Drio are just gonna buy out every popular open source projects now?
The Bun acquisition made a little sense, Boris wanted Daddy Jarred to come clean up his mess, and Jarred is 100% able to deliver.
This doesn't make as much sense. OpenAI has a better low level engineering team and they don't have a hot mess with traction like Anthropic did. This seems more about acquiring people with dev ergonomics vision to push product direction, which I don't see being a huge win.
They do have a hot mess with traction amongst developers. Codex is far behind Claude Code (in both the GUI and TUI forms), and OpenAI's chief of applications recently announced a pivot to focus more on "productivity" (i.e. software and enterprise verticals) because B2B yields a lot more revenue than B2C.
Honestly, I like codex performance compared to claude code.
will private packages hosted on pyx be available for openai to use as training data?
Great that I keep using traditional Python tools.
I am actually quite saddened by this. It's very unlikely that' I'll keep using uv, now. I don't trust this kind of shit.
I think it’s impossible to predict what will happen with this new trend of “large AI company acquires company making popular open source project”. The pessimist in me says that these products will either be enshittified over time, killed when the bubble bursts, or both. The pragmatist in me hopes that no matter what happens, uv and ruff will survive just like how many OSS projects have been forked or spun out of big companies. The optimist in me hopes that the extra money will push them to even greater heights, but the pessimist and the pragmatist beat the optimist to death a long time ago.
It’s open source. If you want it to go in a different direction fork it and take it in that direction. Instead of the optimist, the pessimist, and the pragmatist the guy you need is the chap who does some work.
If they just give Astral money to keep going, great, but I have difficulty believing they would be so altruistic. This is quite an upsetting acquisition.
So instead of finally building an enterprise-grade package manager where you could pay for validated, verified and secure packages, we're going to vibe project management and let a slop-spiggot fill the trough. Brilliant. Incredibly pleased that the last sane tools in the entire python ecosystem are getting gutted to discourage the last few non-braindead devs from bothering.
Just when I moved from poetry to uv.
rip uv
Amusing that the best python tools are written entirely in rust.
That's what you get with toy languages.
nooo
Astral to Join OpenAI (astral.sh) OpenAI to Acquire Astral(https://openai.com/index/openai-to-acquire-astral/)
what can I say?
Oh no! This is actually terrible. Get ready for "premium tooling only available in Codex(TM)".
If you don't pay for your tools and support OSS financially, this is what happens.
Although Astral being VC funded was already headed this way anyway.
Deno, Pydantic (Both Sequoia) will go the same way as with many other VC backed "open source" dev tools.
It will go towards AI companies buying up the very same tools, putting it in their next model update and used against you.
Rented back to you for $20/mo.
There is nothing wrong with big money backing, often is necessary for long term bets, but rug pulling is a serious threat. VC funded open source has become a pattern/playbook.
It would have been fine if the Astral team was acqui-hired and uv, ruff, etc were donated to the PSF or Linux Foundation for further sponsorship and support.
But the pressure because they raised VC funding, I would imagine Astral needed an actual exit and OpenAI saw Astral's tools as an asset.
So vite.dev is next.
Great someone cashed out, time for the next startup idea.
what happen when openai goes brankrupt?
This is where POTUS should step in and stop this sale. Not cool.
Well shit, I feel betrayed. This is exactly the opposite of what I thought Charlie's goals were. I thought he was focused on making the Python ecosystem better.
Related discussion: https://news.ycombinator.com/item?id=47438716
Pyright and ty are under the same roof now.
How does this make sense
Welp, back to pip
If I were to engage in Python development, what's the alternative to uv?
Poetry was the best alt-package manager before uv came along. That said - uv completely outclassed it.
Looks like I can wrap my head around it, thanks.
What are you having an issue with? Environments? pyenv. Dependency management? pip+requirements.
I'll make a note of this, thanks.
no real alternative
So, any good alternatives to uv?
pixi? https://pixi.prefix.dev/latest/
Have not tried it too much yet because I was pretty content with `uv`, but I've heard lots of good things about it
Pretty sure that uses UV to do it's magic
Undisclosed amount?
Hn's favorite company meets hn's most hated company.
Hilarity in the comments will ensue
Genuinely. UV is so awesome and OpenAI is so meh.
I am not even sure how to feel about this news but feel a bit disappointed as a user even if I might be happy for the devs that they got money for such project but man, I would've hoped any decent company could've bought them out rather than OpenAI of all things.
Maybe OpenAI wants to buy these loved companies to lessen some of the hate but what its doing is lessening the love that we gave to corporations like astral/uv sadly, which is really sad because uv is/(was?) so cool but now we don't know where this tool might be headed next given its in the hands of literally OpenAI :(
Thank you n-gate
I really loved uv, I am happy for the developers at astral but I am sad as a user seeing this :(
Any good alternatives to uv/plans for community fork of uv?
I really love uv.
Its always hard to really trust these corporate funded open source products, but they've honestly been great.
…but I find it difficult to believe openai owning the corner stone of the python tooling ecosystem is good thing for the python ecosystem.
There is no question openai will start selling/bundling codex (and codex subscriptions) with uv.
I dont think I want my package manger doing that.
“There is no question openai will start selling/bundling codex (and codex subscriptions) with uv.” What does that even mean?
"Sir, you now have twice as many private jets as Dario"
"But he owns a tooling company. WHY can't I have that? :( :("
the comments here are better than the article lol
Codex team now has the legends who created Pyright and UV/Ruff/Ty.
This is the worst possible news. Fantastic team at Astral joining a bunch of scumbag scammers at "Open"AI.
Associated OpenAI post: https://openai.com/index/openai-to-acquire-astral/ (https://news.ycombinator.com/item?id=47438716)
Don’t you dare enshittify my uv.
Can we rename it to Codex?
damn it, another one bites the dust sadly
Greed knows no limit
OpenAI is Microslop, so it's the classic EEE, nothing new to see
It's like with systemd now planning to enforce gov. age verification
People will censor you if you dare say something negative on this website
So i guess, wears a clown hat "congrats!"
Congrats!
This of course means more VC funding for FOSS tools since a successful exit is a positive signal.
Funding is as good as gone until the Iran mess is over.
> a successful exit is a positive signal
This is peak finance brainrot. In no scenario is abandoning ship a positive signal, even if you managed to pocket some valuables on the way out.
Let's stop celebrating dysfunctional business models and consolidation of the industry around finance bros who give zero fucks about said industry.
Solid move by Altman - good signal they’re serious about capturing the Claude Code market from Anthropic.
What I don’t understand is why hasn’t anyone bought Jetbrains yet.
Atlassian? AWS? Google?
Because Jetbrain strategy wasn't to burn money with free tools to eventually exit with the jackpot. They have been profitable for over a decade, simply asking users to pay a fair price for great product.
Most likely because Jetbrains is not for sale. Google almost certainly offered to buy at some point.
Atlassian? Bitbucket as a platform for agentic development.. shudder
It would seem to me that purchasing a piece of software as an AI company is just an outright admission that they could not generate an equivalent piece of software for a better price?
If it was cheaper to use their internal AI to create these tools, they would.
Extremely stupid argument. It doesn’t matter how good is your car if the driver is lacking.