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Sony Music and Warner Chappell Sue Anthropic Over Copyrighted Works Used in AI Training

August 29, 2026

Source Summary

Sony Music and Warner Chappell filed suit against Anthropic in US District Court for the Northern District of California, seeking damages for "tens of thousands" of copyrighted works used in AI training. The companies are requesting up to $150,000 per work and up to $25,000 for each instance of stripped copyright data, potentially totaling several billion dollars if maximum damages are awarded. This lawsuit follows Anthropic's recent $1.5 billion settlement with the publishing industry over similar copyright claims.

Why it matters

The lawsuit represents a major copyright challenge to AI companies' training practices and could establish significant legal precedent for how generative AI systems must handle copyrighted content.

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