A federal judge in Delaware on Tuesday said that a former competitor of Thomson Reuters was not permitted by U.S. copyright law to copy the information and technology company's content to build a competing artificial intelligence-based legal platform.

A judge looked at possible copyright infringement defenses for Ross Intelligence and said, ‘I reject them all.’

An AI company lifted material from Thomson Reuters' research platform, arguing fair use and innocent infringement. A court has ruled it was copyright violation.

Thomson Reuters has won a victory against AI start-up Ross Intelligence for its use of copyrighted data to train its own AI models.

And yet, the cautious approach to AI that persists at the top of some law firms shows that managing partners who still worry about moving too early are overlooking the significant

Global media and technology giant Thomson Reuters has won the first major AI copyright case in the US. The lawsuit was filed against legal AI start-up Ross Intelligence in 2020. Thomson Reuters alleged that Ross Intelligence illegally copied materials from its legal research firm Westlaw.

A judge ruled Ross Intelligence copied Westlaw data without permission, in a blow to AI developer's fair use claims.

As Wired notes, the judgment blows a hole in the AI industry’s fair use defense. The industry has used fair use (the same parody laws that birthed “ Dumb Starbucks “) to claim that what they do, e.g.,