StocksMedium•29 September 2026•
1 min read

US Appeals Court Upholds Thomson Reuters Victory in AI Copyright Case

Key Facts

1A US appeals court upheld a ruling for Thomson Reuters in its copyright dispute against former rival Ross Intelligence.
2The case involves allegations that Ross misused copyrighted material to train an AI-powered legal search engine.

A US appeals court upheld a ruling for Thomson Reuters in its copyright dispute against former rival Ross Intelligence. Reuters reported that the case involves allegations that Ross misused copyrighted material to train an AI-powered legal search engine.

The court found that Ross Intelligence's use of Thomson Reuters' legal research data to train its AI models constituted a copyright violation. TRI closed at $97.33 on September 28, 2026, with the stock reaching a session high of $98.82 and a low of $96.37.