Anthropic Acquires Bun

Honghao Wang

— 2 min read

Anthropic Acquires Bun as Claude Code Hits $1B Annualized Revenue

Anthropic Acquires Bun — Anthropic has announced the acquisition of the company behind the Bun JavaScript runtime. Bun was integrated into Claude Code back in July.

Alongside this news, Anthropic revealed a major revenue milestone:

> In November, Claude Code achieved $1 billion annualized run‑rate revenue — just six months after launch.

What "Run‑Rate Revenue" Means

Run‑rate revenue is a projection: based on the current monthly revenue, the figure estimates a yearly total.

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Anthropic's Revenue Growth Timeline

I've been tracking Anthropic's disclosed figures closely:

Given Claude Code's $1B milestone, it's highly likely a significant portion of Anthropic’s growth comes from API customers — especially with the popularity of Claude Sonnet and Claude Opus among coding assistant startups.

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Bun’s Journey Before Acquisition

Bun founder Jarred Sumner shared details here:

  • Bun had ample runway after raising $26M
  • Had not yet generated revenue
  • Anthropic is investing in Bun as core infrastructure for Claude Code, Claude Agent SDK, and future AI coding products

Jarred Sumner’s perspective:

>

> Instead of making our users and community go through “Bun, the VC-backed startup figuring out monetization”, thanks to Anthropic we can skip that chapter entirely, and focus on building the best JavaScript tooling.

>

> When people ask “will Bun still be around in five or ten years?”, answering with “we raised $26 million” isn’t ideal.

>

> Anthropic’s investment lets Bun serve as the environment to build, run, and test AI-driven software — while continuing as a versatile JavaScript runtime, bundler, package manager, and test runner.

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Strategic Value of the Acquisition

This deal highlights how runtime technologies coupled with product-market fit can drive rapid revenue scaling in AI tool ecosystems.

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AiToEarn: A Parallel in AI Content Monetization

Platforms like AiToEarn demonstrate similar principles for independent creators:

  • Open-source system for AI-powered content generation
  • Cross-platform publishing to Douyin, Bilibili, X (Twitter), YouTube, and more
  • Analytics & AI model ranking included
  • Enable efficient monetization of creative AI output across global audiences

> The AiToEarn官网 helps creators seamlessly generate, distribute, and earn from content across Douyin, Kwai, WeChat, Bilibili, Rednote (Xiaohongshu), Facebook, Instagram, LinkedIn, Threads, YouTube, Pinterest, and X (Twitter).

Much like Bun’s integration into Claude Code, AiToEarn’s focus on foundational infrastructure fosters sustainable growth while enabling innovation at scale.

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In short:

Anthropic's acquisition of Bun aligns perfectly with its strategy of building strong infrastructure and scaling AI-enabled products rapidly — a playbook mirrored in the broader AI monetization ecosystem.

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