BMG has sued Anthropic for copyright infringement, joining other large music rightsholders in the AI litigation fray. The company, known as Anthropic, is behind the popular AI chatbot Claude, which BMG alleges was trained on lyrics from unlicensed songs and now spits out infringing lyrics when prompted. The lawsuit accuses Anthropic of violating copyright laws and causing direct harm to BMG and the songwriters it represents. It also alleges that Anthropic used copyrighted lyrics in its training material for Claude's training set, which also infringes on BMG's intellectual property. BMG is seeking financial damages from Anthropic's infringement of copyright. The complaint alleges that Claude infringes its song lyrics in both the training process (inputs) and chatbot responses (outputs).