Sony Music and Warner Music filed a lawsuit against Anthropic in a California federal court alleging the unauthorized use of their copyrighted musical compositions to train the Claude AI model. ^[1] Sony Music and Warner Music allege that Anthropic illegally used hundreds of copyrighted musical compositions, including works by The Beatles, Taylor Swift, and Michael Jackson, to train its Claude AI model. ^[2] Sony and Warner Music seek damages of up to US$150,000 for each copyrighted work whose rights were infringed. ^[3] Anthropic became the first AI company to reach a settlement in one of these copyright lawsuits last year, paying $1.5 billion to resolve a collective action filed by a group of authors. ^[4] The lawsuit claims that Anthropic scraped hundreds of song lyrics and sheet works from major artists, including The Beatles, Taylor Swift, and Michael Jackson. ^[5] Sony and Warner Music argue that the $1.5 billion settlement paid by an AI company to authors last year was insufficient to deter future infringement. ^[6] The lawsuit claims that Anthropic's business model relies on violating copyright laws. ^[7] Sony and Warner Music claim Anthropic downloaded the content via torrents instead of using authorized copies or entering into licensing agreements. ^[8] The companies are requesting a court order to prevent Anthropic from continuing to use works from their catalogues. ^[9]