Authors sue Anthropic for copyright infringement over AI training

Andrea Bartz, Charles Graeber and Kirk Wallace Johnson allege company misused work to teach chatbot Claude

The artificial intelligence company Anthropic has been hit with a class-action lawsuit in California federal court by three authors who say it misused their books and hundreds of thousands of others to train its AI-powered chatbot Claude, which generates texts in response to users’ prompts.

The complaint, filed on Monday by writers and journalists Andrea Bartz, Charles Graeber and Kirk Wallace Johnson, said that Anthropic used pirated versions of their works and others to teach Claude to respond to human prompts.