A federal judge has ruled that Anthropic’s use of copyrighted books to train its artificial intelligence model Claude qualifies as “fair use” and does not violate authors’ copyrights, as the large language models did not reproduce the creative elements or unique styles of the original works. The lawsuit, brought by authors Andrea Bartz, Charles Graeber, and Kirk Wallace Johnson, alleged copyright violations and theft related to the use of approximately 7 million books. While the court sided with Anthropic regarding the training of its LLMs, it did order a trial to determine damages related to pirated materials used in creating Anthropic’s “central library.” The decision is a notable win for AI companies and helps clarify the legal landscape for AI training with copyrighted content.































