Translation data required: A group of non-fiction writers has filed a class-action lawsuit against Microsoft and OpenAI, accusing the AI ChatGPT tool of copyright infringement and demanding compensation. The writers claim they received no remuneration, while the two companies earned billions through their AI products. The lawsuit alleges that the companies have closely collaborated to commercially replicate hundreds of millions of copyrighted works using AI products like ChatGPT. This litigation comes shortly after the return of OpenAI's founder to his position, during a period of internal turmoil at the company.