Overview
- Anthropic confirmed the purchase of Bun, the high‑performance JavaScript runtime and toolchain, with financial terms undisclosed.
- The company says Bun will accelerate Claude Code with faster performance, improved stability, and new capabilities for scaling agentic workflows.
- Bun’s team, led by founder Jarred Sumner, is joining Anthropic, and the project will remain MIT‑licensed and developed in public.
- Claude Code reached a $1 billion annualized run rate six months after its May 2025 launch and lists enterprise users such as Netflix, Spotify, KPMG, L’Oréal, and Salesforce.
- Anthropic had collaborated with Bun for months, including work that enabled Claude Code’s native installer, and highlights Bun’s traction with 7 million monthly downloads, 82,000 GitHub stars, and adoption by firms like Midjourney.