Anthropic Faces Lawsuit Over Alleged Piracy in AI Training Data
Music publishers, including Sony, EMI, and Warner Chappell, have sued Anthropic, alleging the company used pirated material to train its AI models.

A group of music publishers, including major labels like Sony, EMI, and Warner Chappell, have filed a lawsuit against AI company Anthropic, accusing it of extensive copyright infringement. The suit claims Anthropic utilized illegally downloaded content, including hundreds of thousands of books and musical compositions, to train its AI model, Claude.
The allegations surface following Anthropic's earlier settlement of $1.5 billion with authors who claimed the company had used copyrighted works without permission. The music publishers argue that this previous settlement is insufficient to deter future infringing conduct by a company that has allegedly leveraged such mass infringement.
The lawsuit highlights internal communications from Anthropic employees that reportedly praise piracy services like Zlibrary for providing training data. Publishers contend these communications demonstrate Anthropic's awareness and benefit derived from the use of pirated materials.
The music publishers are seeking damages and an injunction to prevent further unauthorized use of copyrighted material for AI training.