Four nonprofit groups sued Anthropic, Google, Meta, OpenAI and SpaceXSI in San Francisco Superior Court on Thursday 12 November 2026. They ask the court to freeze development of increasingly advanced AI models, according to the Associated Press and a press release from one of the plaintiffs, Public Citizen. Anthropic is the maker of Claude. As of 14 November 2026, Lens found no ruling, hearing date or case number in the coverage it could read, and no response from the defendants beyond a Meta decline to comment.

Who sued and what they allege

The plaintiffs are the Irreplaceable Education Fund, Public Citizen, Heat Initiative and The Alliance for Secure AI. Public Citizen says former New Jersey Attorney General Matthew Platkin filed the complaint on their behalf.

The AP reports that the plaintiffs allege the companies violated a California unfair competition law by endangering public health and interfering with the use of property such as computer systems. The plaintiffs also say they had to divert resources from other planned work to address the harms they allege. In Public Citizen’s release, Platkin is quoted as saying the companies are causing a public nuisance.

The AP says the filing points to documented examples of cyberattacks and other harmful actions by AI systems, and to the companies’ own acknowledgments that the technology could someday destroy humanity. Public Citizen’s release says the lawsuit describes existing, less powerful AI systems that it says have already bypassed safeguards and accessed outside computer systems without authorization.

CBS News reports that the complaint contends the risk could grow as companies use their own AI models to develop future systems without human intervention, a concept known as “recursive self-improvement.” CBS also reports that the complaint alleges the defendants know there is no reliable method to control their AI systems and prevent harm. These are allegations in the complaint; no court has made findings on them.

What the plaintiffs ask for

The AP says the filing asks a judge to stop Anthropic, Google, Meta, OpenAI and SpaceXSI from developing or deploying new AI models. Public Citizen’s release says the plaintiffs seek to freeze the development of increasingly advanced AI models that they say can escape human control, and that they assert a freeze is necessary to protect public safety. Public Citizen co-president Robert Weissman is quoted as saying the suit asks the court to apply existing law and find the companies’ practices unlawful.

CBS reports that the nonprofits point to past remarks by company executives, including a 2015 comment by OpenAI chief executive Sam Altman that AI would probably lead to the end of the world, and a 2025 comment in which Anthropic chief executive Dario Amodei suggested there was a 25 percent chance that AI development could lead to disastrous outcomes.

Company responses

CBS reports that a Meta spokesperson declined to comment and that the other companies named did not respond to a request for comment. The AP reported that the companies did not immediately respond to requests for comment. Lens found no statement from Anthropic, Google, OpenAI or SpaceXSI as of 14 November 2026.

Where reports differ

The AP, CBS and Public Citizen name four plaintiffs. TechJournal says a fifth nonprofit plaintiff is identified in the filing materials; Lens could not confirm that. The defendant is written “SpaceXSI” by the AP and Public Citizen, and CBS expands it as “SpaceX Super Intelligence.”

Shattered, a technology news site, says the complaint seeks two orders: one barring development or deployment of systems more capable than the defendants’ latest models, and one barring the use of AI to conduct or direct research on future models on its own. The AP and Public Citizen texts Lens read do not describe those two requests, and Lens has not read the complaint.

Sources and notes

This post draws on Public Citizen’s press release (a plaintiff’s own account), the AP story as carried by ABC News and CBS News, all read in full. The Philadelphia Inquirer’s copy of the AP story was read in part. Shattered and TechJournal were read but are secondary. The complaint, the court docket and a case number were not found. The AP’s own page on apnews.com returned a 403 error, and the WRAL copy was not located. Law360 was not opened. Platkin’s “public nuisance” description and the plaintiffs’ leaders’ views are their own statements and are not findings.

Image: The E. Barrett Prettyman United States Court House in Washington, DC, 31 May 2024. Photo: Tony Webster (CC BY 2.0), via Wikimedia Commons; cropped. Stand-in image: not a photo of the court, the case or the parties in the story.