Some of Canada’s best-known media companies join organizations like The New York Times in claiming that OpenAI was unfairly enriched as a result of using their content without permission.

A host of Canadian media companies filed a lawsuit against OpenAI today, alleging “inappropriate and illegal” use of their journalism to power the company’s GPT model, Reuters reports. It’s the latest salvo fired by the media in its fight against AI companies that have scraped large swaths of the open web to train their large-language models.

A coalition of major Canadian media outlets is taking OpenAI to court, claiming the AI company is illegally using news articles for ChatGPT training.