In December 2020, the legal-research startup ROSS Intelligence announced it was shutting down. In its own statement the company wrote, “We have made the difficult decision to shut down operations at ROSS Intelligence. As of January 31, 2021, the ROSS platform will no longer be available.” ROSS had built an early AI-assisted legal research tool and pitched it as a competitor to Westlaw.
The cause, the founders said, was litigation. Thomson Reuters, which owns Westlaw, had sued ROSS for copyright infringement, alleging it copied protected material to train its system. ROSS framed the suit as a competitive weapon: “Litigation is expensive - no matter how speculative the claims against you nor how worthy your position.” With the case hanging over it, the company said it could not raise another funding round and ran out of money. It vowed to keep fighting in court anyway so “the facts at the heart of this lawsuit are brought to light,” closing with the line, “We must go, but we will not go gently.”
The case outlived the company. Years later a court ruled on the merits, finding that ROSS’s copying of Westlaw headnotes was not fair use - a closely watched precedent for how copyright law applies to AI training data.
The one-line lesson: a copyright fight over training data can kill an AI startup long before the legal question is ever resolved, because the cost and uncertainty of the suit alone can choke off the funding it needs to survive.