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.

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 some of Canada’s biggest media companies is seeking billions of dollars in compensation for what they say is copyright infringement on their work through ChatGPT.