(Reuters) - A group of newspapers, including the New York Daily News and Chicago Tribune, sued Microsoft and OpenAI in New York federal court on Tuesday, accusing them of misusing reporters' work to train their generative artificial-intelligence systems.

The eight newspapers, owned by investment firm Alden Global Capital's MediaNews Group, said in the lawsuit that the companies unlawfully copied millions of their articles to train AI products, including Microsoft's Copilot and OpenAI's ChatGPT.