US Appeals Court: Training AI on Copyrighted Material Is Not Fair Use

The Third Circuit Court of Appeals upheld a ruling that Ross Intelligence violated copyright law by training its legal search engine on Thomson Reuters' Westlaw materials. It is the first appellate ruling of its kind in AI training disputes.

• Court upheld that Ross Intelligence infringed Thomson Reuters' copyright
• Company copied Westlaw's editorial headnotes verbatim
• Ross Intelligence shut down in 2021 amid litigation costs
• The ruling may be appealed to the US Supreme Court