US authors suing Anthropic can band together in copyright class action, judge rules; Reuters, July 17, 2025

Blake Brittain , Reuters; US authors suing Anthropic can band together in copyright class action, judge rules

"A California federal judge ruled on Thursday that three authors suing artificial intelligence startup Anthropic for copyright infringement can represent writers nationwide whose books Anthropic allegedly pirated to train its AI system.

U.S. District Judge William Alsup said the authors can bring a class action on behalf of all U.S. writers whose works Anthropic allegedly downloaded from "pirate libraries" LibGen and PiLiMi to create a repository of millions of books in 2021 and 2022."

Four large US publishers sue ‘shadow library’ for alleged copyright infringement; The Guardian, September 15, 2023

Ella Creamer, The Guardian ; Four large US publishers sue ‘shadow library’ for alleged copyright infringement

"Four leading US publishers have sued an online “shadow library” that allows visitors to download textbooks and other copyrighted materials free.

Cengage, Macmillan Learning, McGraw Hill and Pearson Education filed the suit against Library Genesis, also known as LibGen, in Manhattan federal court, citing “extensive violations” of copyright law.

LibGen operates a collection of different domains that allow users to search for and download pdf versions of books. The suit, filed on Thursday, said LibGen holds more than 20,000 files published by the four suing companies."