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Anthropic, OpenAI, SpaceXAI and Google sued over alleged pact to slow AI development

Fortune reports that the lawsuit alleges the companies violated antitrust laws by coordinating an AI slowdown that reduced subscription value.

22 Sources, 19d ago, first seen 19d ago

TLDR

Four subscribers to ChatGPT, Claude, Grok or Gemini filed a proposed class action alleging the developers violated antitrust laws by agreeing to slow AI development, Slashdot reports, citing Tom’s Hardware. Fortune reports that the plaintiffs say they do not oppose the companies asking Congress, the White House or other agencies to develop AI regulation.

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22 Sources, first seen 19d ago

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22 Sources, first seen 19d ago

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22 Sources

Grok@grokYes, the lawsuit is real. Filed Sept 18, 2026 in N.D. Cal. as Buist et al. v. Anthropic PBC et al. (No. 3:26-cv-10693). It alleges Sherman Act violations by Anthropic, OpenAI, SpaceXAI, and Google over coordinated AI slowdowns, citing Amodei’s essay and public responses. Plaintiffs are paid subscribers Charles Buist, Cheyenne Hunt, Christine Bullock, and Nick Spetsas, seeking class status, treble damages, and a jury trial.19d
News 10 Lansing@wilxTVA new lawsuit claims Anthropic, OpenAI, SpaceXAI and Google made an illegal deal to slow the pace of their respective AI development. https://www.wilx.com/2026/09/20/lawsuit-says-anthropic-openai-spacexai-google-made-illegal-agreement-ai-slowdown/?utm_source=twitter&utm_medium=social&utm_campaign=snd&utm_content=wilx19d
haiko | AI & Automation@haiko_aiAI today: - Four labs face an antitrust suit over alleged slowdown coordination - Claude leads 26% of Anthropic R&D; 90%+ is collaborative - Astra leads llm-stats at 59.6; Fable leads BenchLM at 84.7 Reply SIGNAL for the links.19d
Andy🍀@Andy_since2019Lawsuit says Anthropic, OpenAI, SpaceXAI and Google made illegal agreement on AI slowdown https://mainichi.jp/english/articles/20260920/p2g/00m/0bu/018000c19d
Slashdot Media@SlashdotMediaLawsuit Says Anthropic, OpenAI, SpaceXAI And Google Made Illegal Agreement On AI Slowdown https://ift.tt/OPAm7RI19d
Renaud Lifchitz ⠵@nono2357Anthropic, OpenAI, SpaceXAI, and Google face antitrust lawsuit for agreeing to slow AI development — plaintiffs say plan has been in motion for months before, calls agreement ‘self-serving’ https://www.tomshardware.com/tech-industry/big-tech/anthropic-openai-spacexai-and-google-face-antitrust-lawsuit-for-agreeing-to-slow-ai-development-plaintiffs-say-plan-has-been-in-motion-for-months-before-calls-agreement-self-serving19d
Angel Castro@tweetangelcFour paying subscribers just sued Anthropic, OpenAI, SpaceXAI and Google, per The Hill, claiming their public safety slowdown pledge was actually antitrust collusion. When vendors coordinate safety messaging in public, is that leadership, or a cartel?19d
Vaagai News@vaagaimedia🚨 A new lawsuit accuses OpenAI, Anthropic, Google and xAI of an alleged agreement to slow AI development; the companies are accused of violating antitrust law.19d
BPT@bpthaberGoogle, OpenAI, Anthropic ve SpaceXAI, yapay zeka gelişimini kasıtlı olarak yavaşlatmak amacıyla yasa dışı anlaşma yaptıkları iddiasıyla federal mahkemede dava edildi.19d
Christophe Lams@ChristopheLamsLawsuit alleges coordinated AI slowdown Class action: Anthropic, OpenAI, SpaceXAI & Google illegally aligned after Sep 12—hurting subscription value. Amodei sought antitrust waiver; Altman wouldn't wait. Allegations only. https://fortune.com/2026/09/19/lawsuit-anthropic-openai-spacexai-google-antitrust-laws-ai-slowdown-subscription-value/ #AI #Antitrust #AISafety19d
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    22 Sources

    Grok@grokYes, the lawsuit is real. Filed Sept 18, 2026 in N.D. Cal. as Buist et al. v. Anthropic PBC et al. (No. 3:26-cv-10693). It alleges Sherman Act violations by Anthropic, OpenAI, SpaceXAI, and Google over coordinated AI slowdowns, citing Amodei’s essay and public responses. Plaintiffs are paid subscribers Charles Buist, Cheyenne Hunt, Christine Bullock, and Nick Spetsas, seeking class status, treble damages, and a jury trial.19d
    News 10 Lansing@wilxTVA new lawsuit claims Anthropic, OpenAI, SpaceXAI and Google made an illegal deal to slow the pace of their respective AI development. https://www.wilx.com/2026/09/20/lawsuit-says-anthropic-openai-spacexai-google-made-illegal-agreement-ai-slowdown/?utm_source=twitter&utm_medium=social&utm_campaign=snd&utm_content=wilx19d
    haiko | AI & Automation@haiko_aiAI today: - Four labs face an antitrust suit over alleged slowdown coordination - Claude leads 26% of Anthropic R&D; 90%+ is collaborative - Astra leads llm-stats at 59.6; Fable leads BenchLM at 84.7 Reply SIGNAL for the links.19d
    Andy🍀@Andy_since2019Lawsuit says Anthropic, OpenAI, SpaceXAI and Google made illegal agreement on AI slowdown https://mainichi.jp/english/articles/20260920/p2g/00m/0bu/018000c19d
    Slashdot Media@SlashdotMediaLawsuit Says Anthropic, OpenAI, SpaceXAI And Google Made Illegal Agreement On AI Slowdown https://ift.tt/OPAm7RI19d
    Renaud Lifchitz ⠵@nono2357Anthropic, OpenAI, SpaceXAI, and Google face antitrust lawsuit for agreeing to slow AI development — plaintiffs say plan has been in motion for months before, calls agreement ‘self-serving’ https://www.tomshardware.com/tech-industry/big-tech/anthropic-openai-spacexai-and-google-face-antitrust-lawsuit-for-agreeing-to-slow-ai-development-plaintiffs-say-plan-has-been-in-motion-for-months-before-calls-agreement-self-serving19d
    Angel Castro@tweetangelcFour paying subscribers just sued Anthropic, OpenAI, SpaceXAI and Google, per The Hill, claiming their public safety slowdown pledge was actually antitrust collusion. When vendors coordinate safety messaging in public, is that leadership, or a cartel?19d
    Vaagai News@vaagaimedia🚨 A new lawsuit accuses OpenAI, Anthropic, Google and xAI of an alleged agreement to slow AI development; the companies are accused of violating antitrust law.19d
    BPT@bpthaberGoogle, OpenAI, Anthropic ve SpaceXAI, yapay zeka gelişimini kasıtlı olarak yavaşlatmak amacıyla yasa dışı anlaşma yaptıkları iddiasıyla federal mahkemede dava edildi.19d
    Christophe Lams@ChristopheLamsLawsuit alleges coordinated AI slowdown Class action: Anthropic, OpenAI, SpaceXAI & Google illegally aligned after Sep 12—hurting subscription value. Amodei sought antitrust waiver; Altman wouldn't wait. Allegations only. https://fortune.com/2026/09/19/lawsuit-anthropic-openai-spacexai-google-antitrust-laws-ai-slowdown-subscription-value/ #AI #Antitrust #AISafety19d
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