<ul data-eligibleForWebStory="true">Meta secures fair use win in AI 'piracy' case against allegations of copyright infringement.U.S. District Court Judge rules in favor of Meta's fair use defense in training AI models.Authors' market harm theories dismissed as court grants Meta's fair use motion.Ruling not a blanket approval for AI training cases, emphasizes lack of market evidence.Clear win for Meta due to authors' failure in presenting strong arguments on market dilution.