Big news - Bun is now joining Anthropic.
According to the official announcement, Anthropic acquired Bun so it can power Claude Code, the Claude Agent SDK, and future AI-dev tools.
Bun - the super fast JavaScript/TypeScript runtime, bundler, package manager, and test runner — will now serve as core infrastructure for Anthropic’s developer-focused AI tools.
💠 Key points that i extracted
- Bun becomes part of Anthropic’s core engineering stack
- Bun will directly power Claude Code and future dev tools
- Faster performance, better DX, and more stability expected
- Bun stays open source
- Anthropic will invest full-time engineering support into Bun
- Goal: build a stronger, AI-supercharged dev workflow
What the community on Reddit is saying
Reddit thread: https://www.reddit.com/r/webdev/comments/1pch41f/bun_is_joining_anthropic/
A quick vibe check from the top comments:
- “Is this the rug pull people were worried about?”
- “They bought it because it’s critical infrastructure for them.”
- “People are overreacting. It’s not a rug pull.”
- Some users feel this is good for Bun’s long-term health
- Some are worried it might become paid later (“Bun Pro”)
- Others think Bun still isn’t mature enough for real-world teams
A few devs also pointed out they love Bun for:
- Faster installs
- Less tooling overhead
- A cleaner experience than Node
- Good standard library
- Solid for new projects
But yep - the skepticism is still alive.
✅ Pros of the Bun x Anthropic deal
Stronger engineering support
Anthropic has the resources to make Bun more stable and production-ready.
Better dev tools powered by AI
Since Bun will power Claude Code and other AI tools, we might see faster, cleaner workflows.
Still open source
This is a big relief for many devs.
Better performance gains
Bun already has speed benefits - now with more backing, it could get even better.
⚠️ Cons & concerns from developers
Fear of monetization
A common worry: Bun might slowly drift into “Bun Pro” territory.
Corporate ownership shift
Some devs loved Bun’s indie vibe - now they’re unsure if direction will stay community-focused.
Optimized for Anthropic first
There’s a worry Bun will become tailored mainly for AI tooling, not general web development.
Maturity concerns
A few devs said Bun didn’t feel stable yet in real-world jobs.
🔥 My quick take
Honestly, this is a big move - and mostly a good one.
If Anthropic keeps Bun open-source and improves stability, we might see a new era of:
- Faster dev workflows
- AI-first tooling
- Modern runtimes built for real projects
Still… the concerns are real.
Nobody wants to wake up one day and find half the runtime behind a paywall.
For now, I’m excited.
Let’s see how Bun grows with Anthropic behind it. 👀
That's it
What do you think is this a good deal or another free tool to be converted into paid stuff,
Let me know your honest thoughts on this in comments📩
See you in next blog, till then Happy Coding
Top comments (2)
Very soon, the Bun spin-off might happen which will eventually lead to the "Bun Pro" like you said in this blog post.
There is high change that they will lead "Bun Pro" soon