Anthropic Faces $75 Million Copyright Lawsuit Alleging Use of Pirated Books to Train Claude AI]

Anthropic Faces $75 Million Copyright Lawsuit Alleging Use of Pirated Books to Train Claude AI]

Authors have filed a new $75 million lawsuit against Anthropic, claiming the AI company used copyrighted books obtained from pirate libraries to train its Claude artificial intelligence model. The case adds to mounting legal pressure on the AI developer and reflects ongoing disputes between content creators and AI firms over training data practices.

Legal Claims and Key Allegations

The lawsuit centers on copyright infringement claims. Plaintiffs allege Anthropic sourced their copyrighted works from shadow libraries—sites that host material without creator consent—and ingested these books without seeking licenses or providing payment. According to reporting by The New York Post, the authors argue this distinguishes their case from previous legal battles where AI training on legally acquired books was deemed fair use.

A previous ruling established that using legally sourced books for AI training constitutes fair use. However, downloading pirated copies represents a separate act of infringement. The plaintiffs are seeking statutory damages of up to $150,000 per willfully infringed work, arguing that lower per-book settlements fail to reflect the scale of alleged infringement.

Broader Legal and Business Context

This copyright case carries significantly higher financial stakes than a separate class action Anthropic currently faces over its Claude Max subscription plans. In June 2025, plaintiff Karl Kahn sued over alleged hidden usage caps on the $100 Max 5x and $200 Max 20x tiers—claims the company disputed.

The new lawsuit strategy builds on existing legal precedents. Following Anthropic’sapproximately $1.5 billion settlement in a prior class action, some authors opted out to pursue individual claims with higher damage potential. The current case appears to follow this approach, targeting substantially greater per-work compensation than the previous settlement that distributed roughly $3,000 to each of approximately 500,000 affected authors.

pierre2025-01-21T02:02:35+00:00

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