Third Circuit’s opinion in Thomson Reuters v. ROSS Intelligence now available The Third Circuit published its opinion in Thomson Reuters v. ROSS Intelligence, affirming summary judgment for Thomson Reuters and rejecting ROSS Intelligence's fair use defense for using Westlaw headnotes in memos to train its AI model. The ruling upholds the earlier summary judgment and means ROSS Intelligence's training on Westlaw headnotes is not protected as fair use. Third Circuit’s opinion in Thomson Reuters v. ROSS Intelligence now available The Third Circuit just published its decision affirming summary judgment to Thomson Reuters and rejecting fair use in ROSS Intelligence’s use of Westlaw headnotes in memos to train its AI model.