Sony Music, Sony Music Publishing and Warner Chappell filed suit against Anthropic alleging a systemic campaign of illegal piracy involving tens of thousands of copyrighted works.
Sony Music, Sony Music Publishing and Warner Chappell filed a broad lawsuit against Anthropic in the Northern District of California, seeking damages tied to tens of thousands of songs and compositions. The complaint alleges a deliberate pattern of piracy used to train Claude models, not just incidental scraping.
This adds Anthropic to a growing list of AI labs facing music-industry litigation, following similar actions against other model makers. The scope and specificity of the piracy claims raise the stakes beyond typical fair-use arguments.
Rights holders are now targeting training data acquisition directly, which threatens the economics of foundation model development if courts force licensing at scale. Any operator building on Claude or similar models should watch for injunctive relief that could disrupt access or force retraining.
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