Anthropic illegally trained Claude with Stanford professors' books

Automated excerpt

AI giant Anthropic illegally scraped and pirated the work of over 10 Stanford professors to train its Claude models, a federal judge ruled in a May 2026 lawsuit. Anthropic, which the Authors Alliance calls the largest copyright settlement involving an AI company, Judge William Alsup ruled that Anthropic could no longer pirate books to create a permanent central library. While blocking the piracy of work to train AI, Alsup justified the legal acquisition of books to train Claude’s Large Language Models (LLMs) as fair use.

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