A US court ruled in favor of Thomson Reuters, granting a partial summary judgment against Ross Intelligence for not qualifying their use of Westlaw content as fair use. This ruling does not create a legal precedent, leaving open the larger question of whether AI training on proprietary content infringes copyright. With numerous US copyright cases against AI on the horizon, final clarity may only come from the Supreme Court. Despite this legal skirmish, Thomson Reuters continues to engage with the AI sector, recently acquiring CaseText.
We recently were awarded summary judgment as part of the Ross Intelligence litigation, where Ross had obtained access to a reasonable chunk of our Westlaw copyrighted content and used it to create an AI system.
The ruling isn't precedent-setting - it didn't settle whether training AI on publicly accessible or proprietary content without permission counts as fair use or copyright infringement.
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