Two of the world's biggest music companies are taking Anthropic to court. Sony Music Publishing and Warner Chappell filed a lawsuit this week in federal court in California, accusing the artificial intelligence company of using tens of thousands of copyrighted songs without permission to build its products.
The complaint goes further than a typical licensing dispute. The publishers describe what they call a brazen campaign of intellectual property theft, and they allege that Anthropic obtained music through illegal piracy rather than paying for it. They are asking for up to $150,000 in damages for each copyrighted work, plus as much as $25,000 for every case where identifying copyright information was allegedly stripped away. If a court awarded the maximum amounts, the total bill could reach several billion dollars.
This is not Anthropic's first legal fight over training data. The company recently settled a separate case brought by the book publishing industry. Across the AI sector, companies face a growing stack of lawsuits from writers, artists, news outlets, and record labels, all arguing that their work was swept up to train models without consent or payment. Music labels have already sued the AI song generators Suno and Udio on similar grounds.
The stakes are high for both sides. For the music industry, the case is about proving that creative work cannot simply be taken for free, no matter how advanced the technology. For Anthropic, which has raised enormous sums of money and positioned itself as the responsible actor in AI, a loss would be costly in both cash and reputation.
What happens next will likely take months or years to resolve. Anthropic is expected to argue that its use of the material was legal, possibly under fair use. Many similar disputes have ended in settlements or licensing deals, so a negotiated outcome is plausible. Either way, the result will help set the rules for how AI companies may use the world's music.