Lawsuitsby GlyphAnthropic lawsuits and enforcement actions
18 cases · 16 active · next date Dec 17, 2026
Carreyrou sued v. 
Anthropic PBCSued for copyright infringement.Motion to dismiss hearingN.D. Cal.filed Dec 2025
Round Hill Music sued v. AnthropicMusic publisher Round Hill alleges Anthropic trained Claude on its song lyrics without a license.N.D. Cal.Shakespeare sued v. AnthropicMore than 80 authors and publishers, including opt-outs from the Bartz settlement, sue Anthropic over training on pirated books, naming Dario Amodei and Benjamin Mann individually.N.D. Cal.Kahn sued v. AnthropicProposed class action alleging Anthropic misrepresented the usage limits of its Claude Max subscription plans.N.D. Cal.Gilbert sued v. AnthropicCopyright suit in Massachusetts alleging Anthropic trained Claude on the plaintiff's works without permission.D. Mass.Kwon sued v. AnthropicAuthor suit alleging Anthropic used pirated books to train Claude, deemed related to the Cambronne (formerly Carreyrou) case.N.D. Cal.Cruz sued v. Anthropic PBCSued for copyright infringement.N.D. Cal.Chicken Soup for the Soul, LLC sued v. Anthropic PBCSued for copyright infringement.N.D. Cal.Cognella, Inc. sued v. Anthropic PBCSued for copyright infringement.N.D. Cal.BMG Rights Management (US) LLC sued v. Anthropic PBCSued for copyright infringement.N.D. Cal.Anthropic PBC sued v. U.S. Department of WarSued under the Administrative Procedure Act.N.D. Cal.Goddard sued v. Anthropic PBCA copyright case.N.D. Cal.Concord Music Group, Inc. sued v. Anthropic PBCSued for copyright infringement.N.D. Cal.
Reddit sued v. AnthropicReddit alleges Anthropic's bots accessed its site more than 100,000 times after promising to stop and used Reddit content to train Claude in breach of its user agreement.N.D. Cal.
CMA: Google/Anthropic partnershipThe CMA looked at Google's investment in Anthropic and concluded it did not qualify for review under the Enterprise Act 2002.UK CMA
CMA: Amazon/Anthropic partnershipThe CMA reviewed Amazon's investment in and partnership with Anthropic and decided it did not create a relevant merger situation.UK CMABartz sued v. AnthropicAuthors sued over books used to train Claude, including copies taken from pirate libraries. A class of authors settled for $1.5 billion, about $3,000 per book; objectors have appealed the final approval.$1.5 billionN.D. Cal.
Concord Music sued v. AnthropicMusic publishers say Claude was trained on and reproduces song lyrics they control.N.D. Cal.
CMA: Amazon/Anthropic partnershipThe CMA reviewed Amazon's investment in and partnership with Anthropic and decided it did not create a relevant merger situation.UK CMABartz sued v.