# Thomson Reuters Wins AI Copyright Case

> U.S. appeals court upholds Thomson Reuters' copyright victory over Ross Intelligence in AI training dispute.
- Title: Thomson Reuters Wins AI Copyright Case · Pymnts | Shortify
- Summary: U.S. appeals court upholds Thomson Reuters' copyright victory over Ross Intelligence in AI training dispute. Thomson Reuters wins AI copyright case against…
- Keywords: thomson reuters, ross intelligence, westlaw, ai copyright, legal research, federal court, antitrust claims, business, finance, Thomson, Reuters, Wins
- Source: Pymnts — https://pymnts.com/legal/2026/thomson-reuters-wins-ai-copyright-battle
- Author: PYMNTS
- Published: 2026-09-29T21:57:45+00:00
- Read time: 1 min
- Topics: thomson reuters, ross intelligence, westlaw, ai copyright, legal research, federal court, antitrust claims, business, finance
## U.S. appeals court decision
A U.S. appeals court upheld Thomson Reuters' copyright ruling against Ross Intelligence in AI training disputes.
## Thomson Reuters lawsuit
Thomson Reuters filed the suit in 2020 alleging Ross Intelligence copied Westlaw platform material to train its competing AI legal search engine.
## Court rejects fair use claim
The appeals court rejected Ross Intelligence’s fair use argument for its AI search engine training data.
## Ross Intelligence shutdown
Ross Intelligence shut down its platform in January 2021 after losing the lawsuit to Thomson Reuters.
## Antitrust claims dismissed
A federal judge dismissed Ross Intelligence’s antitrust claims against Thomson Reuters in September 2024.
## Thomson Reuters stance
Thomson Reuters states that respecting copyright is essential for fostering innovation while protecting intellectual property for AI solutions.

> firmly believes that respecting copyright is essential for fostering innovation while protecting the intellectual property that fuels fiduciary-grade AI solutions
## Key takeaway

Thomson Reuters wins AI copyright case against Ross Intelligence after appeals court rejects fair use claim for AI training data.