Elon Musk today filed a new lawsuit against OpenAI, Sam Altman, and co-founder Gregory Brockman in federal court in Northern California, resurrecting his legal challenge two months after dropping a nearly identical state case. The 83-page complaint accuses the defendants of racketeering, alleging they ‘deceived’ Musk into co-founding the organization under the guise of a nonprofit dedicated to safely developing artificial general intelligence, and, in partnership with Microsoft, ‘flipped the narrative’ of the company’s original mission.

‘This lawsuit bursts Defendants’ hot-air philanthropy and holds them accountable for their misrepresentations to Musk and the public,’ said Musk’s lawyer Marc Toberoff in a statement. The suit seeks a judicial declaration that OpenAI’s license to Microsoft is void and demands a constructive trust over assets traceable to Musk’s contributions. It comes after OpenAI’s board briefly fired Altman last year, with Microsoft later gaining a non-voting seat and pledging billions in investment.

Musk dropped his original lawsuit in June after OpenAI published early emails from him acknowledging the need for substantial revenue to fund AI research. The case tests how much the original nonprofit mission still matters, the complaint argues.