Anthropic claims 3 Chinese companies ripped it off, using its AI tools to train their models: ‘How the turn tables’

Anthropic has accused three prominent Chinese artificial intelligence firms of using its Claude chatbot on a massive scale to secretly train rival models, an unexpected development in a years-long global debate over where fraud ends and industry standard practice begins.

In a blog post on Monday, San Francisco–based Anthropic alleged that Chinese labs DeepSeek, Moonshot AI, and MiniMax violated corporate law by interacting with Claude, its market-reshaping vibe-coding tool. “We have...