Musk OpenAI lawsuit took a dramatic turn as Elon Musk demanded between $79 billion and $134 billion in damages from OpenAI and Microsoft, accusing the companies of betraying the nonprofit mission that launched the AI giant. The demand was disclosed in court filings submitted Friday in a US federal court in California.
The case, now cleared for a jury trial scheduled for late April in Oakland, centers on OpenAI’s restructuring and its deepening partnership with Microsoft. Musk argues that the transformation turned a nonprofit research lab into a massively profitable enterprise, sidelining the principles he helped establish.
Musk co-founded OpenAI in 2015 and provided about $38 million in early funding before exiting the board in 2018. His legal team claims the company’s estimated $500 billion valuation reflects gains generated by abandoning its original charitable purpose.
According to the filing, financial economist C. Paul Wazzan calculated that OpenAI’s alleged wrongful gains range from $65.5 billion to $109.4 billion. Microsoft’s gains are estimated between $13.3 billion and $25.1 billion. The figures include not only Musk’s financial backing but also his technical input and strategic guidance during OpenAI’s formative years.
Musk’s lawyer, Steven Molo, argued that the situation mirrors that of a founding investor frozen out after a startup’s explosive growth. He claimed the benefits enjoyed by OpenAI and Microsoft vastly exceed Musk’s early contributions, warranting substantial compensation.
OpenAI has pushed back strongly, dismissing the Musk OpenAI lawsuit as meritless. The company said the damages demand is part of what it called an ongoing harassment campaign and expressed confidence it will defeat the claims at trial. Microsoft declined to comment on the latest filing.
The dispute follows OpenAI’s October restructuring, which granted Microsoft a 27 percent ownership stake while maintaining nonprofit oversight of its for-profit arm. Musk has repeatedly argued that the move violates the core promise that OpenAI would develop artificial intelligence solely for the benefit of humanity.
Musk has also signaled plans to seek punitive damages, raising the financial stakes further. As the trial approaches, the case is shaping up as one of the most consequential legal battles in the global AI industry.
