Sony Music and Warner Music, some of the world's leading music publishers, have sued Anthropic in California federal court for allegedly misusing their copyrighted song compositions to train its Claude AI models.
Sony and Warner said in the complaint, filed on Friday, that Anthropic pirated hundreds of song lyrics and sheet music from The Beatles, Taylor Swift, Michael Jackson and hundreds of other artists to train Claude to respond to human prompts.
The lawsuit is the latest in a wave of cases brought against tech companies by copyright owners, including authors, publishers, music labels and news outlets over the use of their work to train AI systems.
Universal Music Group sued Anthropic in 2023 and earlier this year over the alleged use of copyrighted song lyrics in AI training, in lawsuits that are still ongoing.
Anthropic became the first AI company to settle one of the disputes last year, when it paid $1.5 billion to resolve a class action from a group of authors.
