Major music publishers Sony Music Publishing and Warner Chappell Music have filed a major copyright infringement lawsuit against Anthropic, the developer behind the artificial intelligence assistant Claude. The legal action, filed in a California federal court, also explicitly names Anthropic Chief Executive Officer Dario Amodei and co-founder Benjamin Mann.
According to the complaint, Anthropic unlawfully used approximately 20,000 copyrighted songs without prior licensing or authorization to train its large language models. The disputed catalog spans prominent works from globally renowned artists, including The Beatles, Taylor Swift, and Michael Jackson. The publishers allege that the AI system not only reproduces protected lyrics and musical scores when prompted by users, but also generates derivative compositions that directly compete in the commercial market against human songwriters.
Under United States copyright statutes, the plaintiffs are seeking maximum statutory damages of up to $150,000 per willful infringement, which could escalate total liabilities into billions of dollars. In addition to monetary relief, the music publishers are requesting a formal court injunction to prohibit Anthropic from maintaining or using unlicensed music catalogs in its datasets.
This lawsuit follows a series of significant legal challenges for the AI developer. Anthropic previously agreed to a $1.5 billion settlement to resolve a class-action lawsuit brought by book authors, covering roughly 500,000 literary titles at approximately $3,000 per work. While a federal judge previously deemed aspects of AI model training on copyrighted literature as transformative fair use, the court simultaneously established that tech firms lack the legal right to maintain repositories of pirated content. Music publishers are now utilizing that critical distinction to argue that Anthropic unlawfully acquired and archived copyrighted musical compositions.
The litigation marks an ongoing escalation between the generative AI sector and the entertainment industry. Anthropic was previously sued in 2023 by Universal Music Group and allied publishers over similar allegations regarding unlicensed training materials and output generation.
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