Kadrey et al v. Meta Platforms, Inc.

  1. December 16, 2025

    The Top Copyright Decisions Of 2025

    In watershed moments for copyright law and artificial intelligence, two California federal judges delivered the first rulings on whether AI developers' reliance on copyrighted works to train their models qualifies as fair use, providing initial guidance on contentious battles between content creators and tech companies. Here are Law360's picks for the top copyright rulings of 2025.

  2. December 12, 2025

    Authors Suing Meta Seek New Copyright Claim For Torrenting

    A group of bestselling authors has asked a California federal judge for a chance to update its copyright complaint against Meta Platforms, saying it wants to add a contributory infringement claim based on Meta's alleged use of peer-to-peer file-sharing to download material for artificial intelligence training.

  3. July 11, 2025

    Meta's Alleged Book Piracy Is Next Phase Of Authors' IP Suit

    A California federal judge said Friday that a group of bestselling authors' claims that Meta Platforms infringed their copyrights by downloading and allegedly distributing their works through peer-to-peer networks will proceed to summary judgment.

  4. July 08, 2025

    The Biggest Copyright Rulings Of 2025: A Midyear Report

    Two California judges were the first to deliver crucial rulings about what constitutes fair use in training generative artificial intelligence models — a question expected to test the boundaries of the copyright doctrine amid the emergence of the groundbreaking technology. Here is Law360's list of the biggest copyright decisions so far this year.

  5. June 30, 2025

    Meta Dodges Authors' DMCA Claim In AI Suit

    A California federal judge has granted Meta's request to throw out a Digital Millennium Copyright Act claim in a lawsuit that authors brought to challenge the company's use of their books to train a large language model.

  6. June 25, 2025

    Meta Beats 'Half-Hearted' Harm Args In AI Fair Use Suit

    A California federal judge concluded Wednesday that it was fair for Meta Platforms Inc. to train its Llama large language models with 13 bestselling authors' copyrighted material without their permission, calling their arguments that the tech giant's use of their works would harm the market for their books "half-hearted."

  7. May 01, 2025

    Market Effect Key In Authors' IP Suit Against Meta, Judge Says

    Whether it was fair for Meta Platforms to use copyrighted books without permission to train an artificial intelligence platform will come down to how the market for those books is impacted, regardless of how transformative the innovation may be, the California federal judge overseeing a proposed class action from a group of bestselling authors said Thursday.

  8. April 15, 2025

    Meta Used Pirated Data To Evaluate Licensing, Authors Say

    A group of bestselling authors accusing Meta Platforms of copyright infringement allege the tech company downloaded databases with millions of pirated books not just to train its large language models, called Llama, but also to see whether it could develop them without licensing content, according to a newly unredacted summary judgment motion.

  9. April 14, 2025

    Backers Of Meta, Authors Clash Over Fair Use In AI Training

    The conflict between bestselling authors and Meta Platforms Inc. over the use of their works for training artificial intelligence software has drawn numerous amicus briefs that underscore the stakes involved, with warnings of devastating consequences for the future of AI development or the rights of copyright owners depending on how the court rules.

  10. March 25, 2025

    Meta Says Using Authors' Books For AI Training Is Fair Use

    Meta Platforms has urged a California federal judge to find that it did not violate copyright law in using material from books by more than a dozen authors to train its large language models named "Llama," saying the dispute "presents a question of existential importance" to the development of generative artificial intelligence in the U.S.