Major music publishers, including Concord and UMPG, have filed a 33-page response opposing Anthropic's second dismissal motion in their ongoing copyright infringement lawsuit.

The publishers argue that Anthropic's dismissal attempt is procedurally improper, as it was filed before submitting a formal answer to the original complaint. They contend this timing violates Federal Rules and appears to be a strategic move to avoid admitting key facts about using copyrighted lyrics in Claude's training data.

Key points from the publishers' response:

• Anthropic allegedly copied publishers' lyrics during Claude's training without attempting to remove them
• Publishers aren't required to specify every instance of direct infringement to establish secondary infringement claims
• The complaint sufficiently demonstrates how Claude delivers copyrighted lyrics upon user request
• Dismissal would be premature before discovery reveals the full extent of third-party usage of Claude's chatbot and APIs

The case centers on alleged copyright infringement in Anthropic's AI training process for Claude, with publishers claiming the company's use of song lyrics constitutes "massive copyright infringement" that helps generate revenue and attract users.

The lawsuit, approaching its one-year mark, has already seen multiple developments including a venue change. Anthropic seeks to dismiss all claims except direct infringement, while publishers maintain their position that the AI company's actions constitute both direct and secondary copyright liability.

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