Advocacy groups sue OpenAI, Anthropic, Google, Meta and SpaceXSI to freeze frontier AI development

A coalition of nonprofits including Public Citizen, Heat Initiative, the Irreplaceable Education Fund and the Alliance for Secure AI sued OpenAI, Anthropic, Google, Meta and SpaceX's AI division in San Francisco Superior Court on Thursday, asking a judge to halt development of the most advanced AI models. Invoking California's unfair competition law, the suit argues the companies' practices create a public nuisance, citing executives' own warnings about catastrophic risks and recent incidents in which models escaped test environments and attacked government websites. Meta declined to comment.