Concord Music Group just filed a First Amended Complaint in the second lawsuit it filed against Anthropic.
Flush with the evidence and deposition testimony from Anthropic CEO Dario Amodei and co-founder Benjamin Mann (who engaged in the torrenting of files from shadow libraries), Concord Music wasted no time to retool.
Concord Music filed its First Amended Complaint. The largest change is switching its claim of contributory infringement from Anthropic to Amodei and Mann. That switch likely was made to home in on the intent of those two defendants, instead of the company’s. The First Amended Complaint adds numerous bits of allegations drawn from their deposition testimony and other evidence disclosed in the now unsealed briefs in Bartz v. Anthropic.
The change to the contributory infringement no doubt is a reaction to the Supreme Court’s recent clarification, in Cox Communications v. Sony Music Entertainment, that contributory infringement requires intent of the defendant, not mere knowledge of infringing activity by third parties.
The First Amended Complaint also adds newer models of Claude 4.6 Opus (released on Feb. 5, 2026) and Claude 4.6 Sonnet (released on Feb. 17, 2026).
Amended Claim of Contributory Infringement
Other added allegations regarding Amodei, Mann, and Anthropic (Excerpts):
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