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Anthropic acquires Bun

bun.com

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Re: Anthropic acquires Bun

#171

Post by krig »

This announcement made me check in on the arbitrary code execution bug I reported that the Bun Claude bot created a PR for about 3 weeks ago:

https://github.com/oven-sh/bun/pull/24578

So far, someone from the bun team has left a bunch of comments like

> Poor quality code

...and all the tests still seem to be failing. I looked through the code that the bot had generated and to me (who to be fair is not familiar with the bun codebase) it looks like total dogshit.

But hey, maybe it'll get there eventually. I don't envy "taylordotfish" and the other bot-herders working at Oven though, and I hope they get a nice payout as part of this sale.

Re: Anthropic acquires Bun

#172

Post by ximeng »

runjake wrote: post #144
ximeng wrote: post #104

I use bun in a project but Claude Code always uses node to run throwaway scripts. Maybe they can persuade it to use bun as part of this acquisition?

I always tell it to use Bun and it works? Am I misunderstanding?

It seems the default is node (despite the project docs saying to use bun and all example script documentation using bun). It will use bun if told, but there’s definitely nothing saying to use node and it uses that anyway.

Re: Anthropic acquires Bun

#173

Post by rsyring »

mokarma wrote: post #122

Quote from the CEO of Anthropic in March 2025: "I think we'll be there in three to six months where AI is writing 90% of the code and then in 12 months we may be in a world where AI is writing essentially all of the code"

Do you have a source for the quote?

Re: Anthropic acquires Bun

#174

Post by pseudosavant »

snapcaster wrote: post #110
whalesalad wrote: post #48

Earlier quoted context omitted.

Our entire business runs on Python without a drop of Astral in the mix. No one would even notice.

you should try uv, really impressive tool

Honestly, that is an understatement. `uv run` has transformed how I use Python since 99% of the time I don't need to setup or manage an environment and dependencies. A have tons of one-off Python scripts (with their dependencies in PEP 723 metadata at the top of the file) that just work with `uv run`.

I get how it might not be as useful in a production deployment where the system/container will be setup just for that Python service, but for less structured use-cases, `uv` is a silver bullet.

Re: Anthropic acquires Bun

#175

Post by bcye »

Tiberium wrote: post #35

As someone who have been using Deno for the last few years, is there anything that Bun does better? Bun seems to use a different runtime (JSC) which is less tested than V8, which makes me assume it might perform worse in real-world tasks (maybe not anymore?). The last time I checked Bun's source code, it was... quite messy and spaghetti-like, plus Zig doesn't really offer many safety features, so it's not that hard t…

It just works. Whatever JavaScript/TypeScript file or dependencies I throw at it, it will run it without needing to figure out CJS or ESM, tsconfig, etc.

I haven't had that experience with deno (or node)

Re: Anthropic acquires Bun

#176

Post by tyingq »

simonw wrote: post #105
raw_anon_1111 wrote: post #94

Earlier quoted context omitted.

But how is another company that is also VC backed and losing money providing stability for Bun? How long before we hear about “Our Amazing Journey”? On the other hand, I would rather see someone like Bun have a successful exit where the founders seem to have started out with a passion project, got funding, built something out they were excited about and then exit than yet another AI company by non technical founders…

Anthropic may be losing money, but a company with $7bn revenue run rate ( https://www.anthropic.com/news/statement-dario-amodei-americ... ) is a whole lot healthier than a company with a revenue of 0.

If I had the cash, I could sell dollar bills for 50 cents and do a $7b run rate :)

Re: Anthropic acquires Bun

#178

Post by Tiberium »

skybrian wrote: post #168
Tiberium wrote: post #35

As someone who have been using Deno for the last few years, is there anything that Bun does better? Bun seems to use a different runtime (JSC) which is less tested than V8, which makes me assume it might perform worse in real-world tasks (maybe not anymore?). The last time I checked Bun's source code, it was... quite messy and spaghetti-like, plus Zig doesn't really offer many safety features, so it's not that hard t…

I’ve been using Deno too. Although npm support has improved and it’s fine for me, I think Deno has more of a “rewrite the world” philosophy. For example, they created their own package registry [1] and their own web framework [2]. Bun seems much more focused on preexisting JavaScript projects. [1] https://jsr.io/ [2] https://fresh.deno.dev/

It's interesting that people have directly opposite opinions on whether Deno or Bun are meant to be used with the existing ecosystem - https://news.ycombinator.com/item?id=46125049

Re: Anthropic acquires Bun

#179

Post by serial_dev »

mritchie712 wrote: post #68

> At the time of writing, Bun's monthly downloads grew 25% last month (October, 2025), passing 7.2 million monthly downloads. We had over 4 years of runway to figure out monetization. We didn't have to join Anthropic. I believe this completely. They didn't have to join, which means they got a solid valuation. > Instead of putting our users & community through "Bun, the VC-backed startups tries to figure out monetizat…

> I believe this a bit less.

They weren’t acquired and got paid just to build tooling as before and now completely ignoring monetization until the end of times.

Re: Anthropic acquires Bun

#180

Post by hiAndrewQuinn »

frumplestlatz wrote: post #169
dboon wrote: post #141

Earlier quoted context omitted.

Ink (and modern alternatives) probably are the best TUI toolkit. If you want to write a UI that's genuinely good, you need e.g. HTML, or some way to express divs and flex box. There isn't really another way to build professional grade UIs; I love immediate mode UI for games, but the breadth of features handled by the browser UI ecosystem is astonishing. It is a genuinely hard problem. And if you're expressing hierarc…

The idea that you need or want HTML or CSS to write a TUI is missing the entire point of what made TUIs great in the first place. They were great precisely because they were clean, fast, simple, focused -- and didn’t require an entire web stack to draw colored boxes.

I'm not so sure about that. I've written some nontrivial TUIs in my time, the largest one being [1], and as the project got more complicated I did find myself often thinking "It sure would be nice if I could somehow just write this stuff with CSS instead of tiny state machines and control codes for coloration". There's no reason these languages couldn't compile down to a TUI as lean as hand-coloring everything yourself.

[1]: https://taskusanakirja.com/

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