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FinanceSony Music, Warner Music sue Anthropic for massive copyright theft in AI training
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On August 29, 2026, major music publishers including units of Sony Music and Warner Music filed a federal lawsuit in northern California against AI company Anthropic, its CEO Dario Amodei, and co-founder Benjamin Mann. The 48-page complaint alleges that Anthropic engaged in 'one of the largest and most blatant ongoing thefts of intellectual property in history' by illegally torrenting, scraping, and downloading thousands of copyrighted musical works to train its Claude series of AI models. The plaintiffs seek hundreds of thousands of dollars in damages per infringed work. This is not Anthropic's first copyright controversy; in September 2025, the company agreed to a $1.5 billion settlement with authors and publishers, the largest copyright settlement in U.S. history. Anthropic had not commented on the suit at the time of reporting. The case is expected to be a landmark fight over music, AI, and intellectual property protection.
Source report
Author: Ben Berkowitz Source: Axios Reading Time: 2 minutes
Overview
Some of the world's largest music publishers filed a blockbuster lawsuit against Anthropic late Friday night, alleging "one of the largest and most blatant ongoing thefts of intellectual property in history."
Why It Matters
The suit marks the opening salvo in what is now likely to be a yearslong legal battle over music, artificial intelligence, and how intellectual property is protected in a new technological era.
Key Details
- Plaintiffs: Units of Sony Music and Warner Music
- Defendants: Anthropic, CEO Dario Amodei, and co-founder Benjamin Mann
- Court: Federal court in northern California
- Filing Date: Late Friday night
Allegations
In a 48-page complaint, the plaintiffs state:
"Defendants Anthropic and its founders Dario Amodei and Benjamin Mann have conducted a brazen campaign of illegally torrenting, scraping, and downloading copyrighted works on a massive scale in order to develop, operate, and reap enormous profits from Anthropic's 'Claude' series of artificial intelligence ('AI') models."
The publishers also claim that Anthropic pirated thousands of copyrighted musical works and are seeking hundreds of thousands of dollars in damages per infringed work.
Context
This is not the first time Anthropic has faced accusations of piracy related to training its AI models:
- In September 2025, the company agreed to the largest copyright settlement in U.S. history — a $1.5 billion deal with authors and publishers.
Industry Background
The music industry has a well-known history of aggressive litigation over copyright issues, as seen during the era of Napster and LimeWire.
Response
Anthropic was not immediately available to comment on the lawsuit.
Editor's note: This is a developing story.
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Source
Yahoo FinanceWestern
Part of this Story
Major Music Publishers Sue AI Company Anthropic Over Copyright Infringement