Bun joins Anthropic
December 3, 2025
From the department of I did not see that coming: Jarred Sumner has announced that Anthropic is acquiring Bun. The expected path was cloud hosting. But then AI started getting good, Jarred got hooked on Claude Code — which is itself built on Bun now — and a few weeks ago he went on a four-hour walk with Boris from the Claude Code team to talk about joining forces. It’s a bit crazy, but it might just work.