Lawsuitsby GlyphOpenAI lawsuits and enforcement actions
39 cases · 35 active
Times Publishing Co. sued v. 
Microsoft and OpenAITimes Publishing Company alleges Microsoft and OpenAI used its newspaper content without a license to train and run AI products.S.D. N.Y.A.C. sued v. Altman (Tumbler Ridge)Lead case among about 30 coordinated suits by survivors and families of the Tumbler Ridge, British Columbia school shooting alleging OpenAI flagged the shooter's ChatGPT account but failed to warn police.N.D. Cal.Sullivan sued v. 
OpenAIProposed class action alleging OpenAI trained on copyrighted works without permission; filed as a companion to Sullivan v. Meta in California.S.D. N.Y.Richner Communications sued v. MicrosoftThirty-five local and regional newspaper publishers representing about 400 outlets allege Microsoft and OpenAI copied their journalism to build AI products.S.D. N.Y.Carreyrou sued v. OpenAIClaims by author John Carreyrou and others against OpenAI were severed from the multi-defendant Carreyrou suit in California and sent to the OpenAI MDL.S.D. N.Y.Ted Entertainment sued v. OpenAIYouTube creators behind h3h3 Productions allege OpenAI downloaded and trained on their videos without permission.N.D. Cal.
Encyclopaedia Britannica sued v. OpenAIBritannica and Merriam-Webster allege OpenAI copied their reference content to train ChatGPT and reproduces it in answers.S.D. N.Y.
Gracenote Media Services sued v. OpenAINielsen-owned Gracenote alleges OpenAI copied its proprietary entertainment metadata and descriptions to train its models.S.D. N.Y.Nippon Life Insurance sued v. OpenAINippon Life alleges ChatGPT induced a breach of a settlement agreement by helping a former claimant file a motion to reopen a settled lawsuit.N.D. Ill.Erickson sued v. OpenAI, Inc.Sued for copyright infringement.N.D. Cal.Erickson sued v. OpenAI, Inc.Sued for copyright infringement.D. Nev.MITII, Inc. sued v. OpenAI Global, LLCSued for patent infringement.N.D. Cal.Gholami sued v. OpenAI, Inc.Sued for copyright infringement.N.D. Cal.Lyons sued v. OpenAI (Soelberg)Heirs allege ChatGPT reinforced Stein-Erik Soelberg's paranoid delusions before he killed his mother and himself in Connecticut; a parallel state case was filed by the estate executor.N.D. Cal.Carreyrou sued v. OpenAI, Inc.Sued for copyright infringement.N.D. Cal.California Newspapers Partnership sued v. MicrosoftA group of California newspapers alleges Microsoft and OpenAI used their articles without a license to train and run generative AI products.S.D. N.Y.
U.S. News & World Report sued v. OpenAIU.S. News alleges OpenAI copied its rankings and articles to train and power ChatGPT.S.D. N.Y.
xAI sued v. OpenAI (trade secrets)xAI alleges OpenAI poached its engineers and executives to obtain trade secrets about Grok and its data center operations.N.D. Cal.X Corp. and xAI sued v. 
Apple and OpenAIX and xAI allege Apple and OpenAI conspired to lock up the smartphone and generative AI chatbot markets by integrating ChatGPT into iOS and favoring it in the App Store.N.D. Tex.Denial sued v. OpenAIProposed class action on behalf of owners of registered non-book textual works and unregistered works alleging OpenAI trained on them without permission.N.D. Cal.
iyO sued v. OpenAI (io trademark)Hearing-device startup iyO alleges OpenAI and Jony Ive's io Products infringe its IYO trademark with the io name for their AI hardware venture.N.D. Cal.
Ziff Davis sued v. OpenAIZiff Davis, owner of IGN, CNET, PCMag and Mashable, alleges OpenAI copied its articles to train models and ignored robots.txt opt-outs.D. Del.In re OpenAI Copyright Infringement LitigationThe multidistrict litigation that gathers the author and news publisher copyright suits against OpenAI and Microsoft before one judge in New York.S.D. N.Y.CMA: Microsoft/OpenAI partnershipThe CMA concluded Microsoft had not acquired control over OpenAI's commercial policy, so the partnership fell outside UK merger rules.UK CMAGarante fine: OpenAI, ChatGPTItaly fined OpenAI over training ChatGPT on personal data without a legal basis and weak age checks. The Court of Rome upheld OpenAI appeal in March 2026.EUR 15 millionItalian Data Protection Authority (Garante)Musk sued v. AltmanElon Musk sued OpenAI, Sam Altman and Microsoft over OpenAI moving away from its nonprofit founding promises. A mediator was appointed in July 2026.N.D. Cal.Millette sued v. OpenAIYouTube creator David Millette alleges OpenAI transcribed and trained on YouTube videos without creators consent.N.D. Cal.
Center for Investigative Reporting sued v. OpenAIThe nonprofit publisher of Mother Jones and Reveal alleges OpenAI and Microsoft used its journalism without permission to train and run ChatGPT and Copilot.S.D. N.Y.
Daily News sued v. MicrosoftEight Alden Global Capital newspapers, including the New York Daily News and Chicago Tribune, allege Microsoft and OpenAI copied millions of their articles to train and power chatbots.S.D. N.Y.
Raw Story sued v. OpenAIRaw Story and AlterNet alleged OpenAI removed copyright management information from their articles in training data; the court dismissed for lack of standing.S.D. N.Y.
The Intercept sued v. OpenAIThe Intercept alleges OpenAI stripped author, title and copyright information from its articles when using them as training data, in violation of DMCA section 1202(b).S.D. N.Y.Basbanes sued v. MicrosoftJournalists Nicholas Basbanes and Nicholas Gage allege Microsoft and OpenAI used their books to train large language models without permission.S.D. N.Y.
New York Times sued v. Microsoft and OpenAIThe Times says millions of its articles were copied to train ChatGPT and Copilot, and that the models reproduce its journalism. Coordinated with the other news and author suits in the OpenAI copyright MDL.S.D. N.Y.Alter sued v. OpenAINonfiction authors led by Julian Sancton (later Jonathan Alter) allege OpenAI and Microsoft trained models on their books without a license.S.D. N.Y.
Authors Guild sued v. OpenAIThe Authors Guild and 17 authors, including George R.R. Martin and John Grisham, allege OpenAI copied their books without permission to train GPT models; Microsoft was later added as a defendant.S.D. N.Y.OpenAI sued v. Open Artificial IntelligenceOpenAI sued Guy Ravine and his company Open Artificial Intelligence for trademark infringement over use of the Open AI name; Ravine claimed prior rights.N.D. Cal.Walters sued v. OpenAIRadio host Mark Walters sued over a ChatGPT hallucination claiming he embezzled from a gun rights group, the first defamation suit against an AI chatbot maker.N.D. Ga.In re OpenAI ChatGPT Litigation (Tremblay sued v. OpenAI)Authors Paul Tremblay, Mona Awad, Sarah Silverman and others allege OpenAI trained ChatGPT on pirated copies of their books; the Silverman and Chabon suits were consolidated into it.N.D. Cal.Doe sued v. 
GitHubDevelopers sued over Copilot suggesting their open source code without its license terms. The Ninth Circuit decided the certified appeal in September 2026.N.D. Cal.