Claude’s source code was mistakenly published by Anthropic in the middle of the night, and users have already begun recreating pieces of the internal AI interface leak for their own use.

A top Anthropic PBC executive expects the company’s general-purpose artificial intelligence agent, Cowork, to reach a wider market than Claude Code, the hit product that helped turn the startup into a...

A source code leak is a blow to the startup, as it could help give software developers, and Anthropic’s competitors, insight into how it built its viral coding tool.