Anthropic has scored a major victory in an ongoing legal battle over artificial intelligence models and copyright, one that may reverberate across the dozens of other AI copyright lawsuits winding through the legal system in the United States. While Alsup found that Anthropic’s training was fair use, he ruled that the authors could take Anthropic to trial over pirating their works. Authors argue Anthropic should have paid for these pirated library copies. “We will have a trial on the pirated copies used to create Anthropic’s central library and the resulting damages,” the order concludes. The lawsuit, Bartz v. Anthropic, was first filed less than a year ago; Anthropic asked for summary judgment on the fair use issue in February.