Canadian news publishers sue Anthropic in Ontario over AI copyright
News publishers have launched an Ontario copyright suit against Anthropic - Canada's front in the global fight over AI training on journalism.
A group of Canadian news publishers filed a lawsuit against Anthropic and its Canadian subsidiary in Ontario Superior Court on October 6, alleging that the AI company used their journalism without permission to develop and operate Claude. The allegations have not been decided by a court.
The plaintiffs include The Canadian Press, the Toronto Star, The Globe and Mail, Metroland Media, Postmedia Network and PNI Maritimes LP, according to Broadcast Dialogue’s reporting on the claim. They allege copyright infringement, breach of contract and unjust enrichment, and seek damages and an injunction against unauthorized use of their work.
What the case could test
The lawsuit raises questions under Canadian law about the use of copyrighted news material in AI systems. The publishers’ claims and Anthropic’s response will need to be assessed through the court process. This report describes the filing, not a finding of liability.
Updated October 25, 2026: Added the filing date, named the plaintiffs and clarified that their allegations remain unproven.
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