Sony Music Publishing and Warner Chappell sue Anthropic for massive song piracy

The lawsuit, filed in California, also targets the two founders of Anthropic personally and claims up to $150,000 per protected work.

Sony Music Publishing and Warner Chappell Music filed a lawsuit in federal court for the Northern District of California on Aug. 28, accusing Anthropic of waging a "brazen campaign" of piracy, scraping, and mass downloading of copyrighted works to train its Claude models. Notably, the lawsuit also targets CEO Dario Amodei and co-founder Benjamin Mann personally, in addition to the company.

The record companies claim that Anthropic used tens of thousands of their compositions without authorization, including sourcing from piracy libraries such as Library Genesis, with lyrics and scores of songs such as "Livin' On a Prayer," "Hallelujah" and "Great Balls of Fire." The plaintiffs are seeking a jury trial as well as damages of up to $150,000 per pirated work and $25,000 for each removal of rights management information. Anthropic disputes the accusations and says it will defend itself in court.