Eleven Pulitzer Prize winners have filed a lawsuit against OpenAI and Microsoft in the Manhattan Federal Court, accusing them of misusing their works to train large models like ChatGPT. The lawsuit seeks financial compensation and an injunction to stop the infringement, marking a continuation of previous litigation with Microsoft now listed as a defendant for the first time. The era of large AI models has sparked copyright issues, with the U.S. District Court for the Northern District of California having accepted 10 infringement cases since November. The traditional copyright model is failing in the AI era, as large-scale model training involves numerous works with complex ownership issues, and solutions are still under discussion.