A German court has ruled that OpenAI’s popular chatbot, ChatGPT, violated copyright law by using song lyrics from well-known musicians to train its language models, a decision that could have wide-ranging consequences for how artificial intelligence systems handle creative works. The Munich regional court sided with Germany’s music rights society GEMA, which represents around 100,000 composers, lyricists, and music publishers, finding that OpenAI’s models had ingested protect