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.

Several major news outlets in Canada are now suing OpenAI, the California-based maker of ChatGPT for using their content to improve the program's software.