Thomson Reuters wins AI copyright ruling over training data • The Register

Thomson Reuters has won a partial summary judgment against Ross Intelligence, a now-shuttered AI firm, for copyright infringement. The judge ruled that Ross’s use of Thomson Reuters’ Westlaw content to train its AI legal search tool was not transformative and negatively impacted the market for the original work, disallowing fair use as a defense. This decision, significant in the rapidly evolving AI landscape, will likely influence other pending copyright lawsuits against AI firms and may eventually reach the Supreme Court.