A group of nine newspaper publishers has filed a lawsuit against Microsoft and its partner OpenAI, alleging extensive copyright violations. The lawsuit, filed in the U.S. District Court for the Southern District of New York, claims that the companies unlawfully used millions of copyrighted articles to train their large language models, including the technology behind ChatGPT and Copilot. The complaint argues that the AI models reproduce the publishers' work without credit or compensation, presenting the information as their own without linking back to the original sources. This legal action is one of several similar copyright infringement cases brought against major AI developers by content creators and publishers, highlighting the growing legal challenges surrounding the use of copyrighted material for training artificial intelligence systems.