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Anthropic acquires Bun

bun.com

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Re: Anthropic acquires Bun

#62
post #46
post #34

Earlier quoted context omitted.

No, they're clearly acquiring the technology. They're betting Claude Code on Bun, they have an invested interest in the health of Bun.

Why would they want to bet on nascent technology whereas Node.js bas existed for a god 15 years?

Because Microsoft already owns that.

Re: Anthropic acquires Bun

#63
post #21

I don't really see how Bun fits as an acquisition for an AI company. This seems more like "we have tons of capital and we want to buy something great" than "Bun is essential to our core business model".

It does actually.

Claude Code is a 1B+ cash machine and Anthropic directly uses Bun for it.

Acquiring Bun lowers the risk of the software being unmaintained as Bun made $0 and relied on VC money.

Makes sense, but this is just another day in San Francisco of a $0 revenue startup being bought out.

Re: Anthropic acquires Bun

#64

Bun has completely changed my outlook on the JS ecosystem. Prior to Bun, there was little focus on performance. Now the entire space rallies around it. Congrats to Jarred and the team!

One important original point of node was that v8 made JS very fast by compiling to machine code, plus it’s had multithreading built in for a decade.

Re: Anthropic acquires Bun

#66
post #38
post #31

I don't get it. Why would Anthropic need to own a JS runtime?

Because they have a product that makes $1bn+ a year that depends on having a good, stable, cross-platform JS runtime.

That doesn’t require or benefit from acquiring Bun. Node continues to exist and serve fine.

Re: Anthropic acquires Bun

#67

Earlier quoted context omitted.

If Anthropic wants to own code development in the future, owning the full platform (including the runtime) makes sense. Programming languages all are a balance between performance/etc and making it easy for a human to interact with. This balance is going to shit as AI writes more code (and I assume Anthropic wants a future where humans might not even see the code, but rather an abstraction of it... after all, all cod…

"the full platform" there are more languages than ts though? Acquisition of Apple Swift division incoming?

TypeScript is the most popular programming language on the most popular software hosting platform though, owning the best runtime for that seems like it would fit Pareto's rule well enough:

https://github.blog/news-insights/octoverse/octoverse-a-new-...

Re: Anthropic acquires Bun

#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 monetization" – thanks to Anthropic, we can skip that chapter entirely and focus on building the best JavaScript tooling.

I believe this a bit less. It'll be nice to not have some weird monetization shoved into bun, but their focus will likely shift a bit.

Re: Anthropic acquires Bun

#69
post #54

Earlier quoted context omitted.

Does this acquisition mean Claude Code the CLI is more valuable than entiriety of Bun?

It certainly generated more revenue, so this is not surprising?

> It certainly generated more revenue, so this is not surprising?

Anything is greater than 0

Re: Anthropic acquires Bun

#70
they acquihired the team and derisked their investment in building claude code on top of bun. makes sense to me.

moreover, now they can make investments in order to make it an an even more efficient and secure runtime for model workspaces.

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