Five AI giants sued over alleged civilizational risks

On November 12, 2026, four U.S. nonprofit organizations filed a lawsuit in the Superior Court of California in San Francisco against OpenAI, Anthropic, Google, Meta, and SpaceXAI, asking the court to block these companies from continuing to develop or deploy new AI models. According to the AP report, the plaintiffs argued that the firms cannot adequately prevent their AI systems from causing "catastrophic" harm, and that pushing ahead with advanced AI research could pose a serious threat to public safety.

A follow-up report from IT Home, citing Reuters, identified the four groups involved as the Irreplaceable Education Fund, Public Citizen, the Heat Initiative, and the Alliance for Secure AI. The plaintiffs invoked California's unfair business practices law, contending that the companies' AI product development may endanger public health, safety, and the public interest, and asked the court to order a halt to further development of advanced AI products such as ChatGPT, Gemini, and Claude.

A distinctive feature of the case is that its central evidence draws heavily on the defendants' own executives. The complaint notes that these companies' leaders have repeatedly warned that advanced AI could carry civilization-level risk of destruction, yet the firms have continued to advance the research and commercialization of more powerful models. The filing also references public statements from Anthropic CEO Dario Amodei and SpaceX CEO Elon Musk. The suit has now been filed, and no further word on the case's procedural status has been reported.