Elon Musk and Sam Altman co-founded OpenAI in 2015 as a nonprofit designed to be a counterweight to Google’s dominance in artificial intelligence. A decade later, they are in a federal courtroom in Oakland, California, fighting over what that promise was worth.
Musk filed the lawsuit in 2024, alleging Altman and co-founder Greg Brockman broke the founding agreement by transitioning OpenAI toward a for-profit structure. OpenAI is now valued at over $850 billion. Musk’s own AI company, xAI, merged with SpaceX in February and is valued at $1.25 trillion.

Closing arguments wrapped up last Thursday after three weeks of testimony. A jury began deliberations Monday.
But cracks appeared by 2017. Musk pushed to take as much as 90% equity in any future for-profit entity and at one point suggested merging OpenAI into Tesla. Altman and other co-founders rejected both ideas.
Altman countered that no formal commitments were ever made about OpenAI’s structure and that Musk’s demand for total control was the real sticking point.
Altman acknowledged under questioning that he had considered running for California governor. He has since met with over 100 members of Congress and OpenAI is now working with Democratic insiders as it moves toward an IPO.
Altman’s lawyer argued Musk is pursuing the lawsuit out of “vengeance” and seeking $150 billion in damages. Musk’s lawyer called Altman’s focus on the CEO title a “fixation” with potential political motives.
Both SpaceX and OpenAI are racing toward public markets. SpaceX is expected to file its IPO prospectus as soon as this week. A verdict in the case could affect OpenAI’s plans.
The jury is now deciding whether Altman and Brockman should be held liable for breach of charitable trust and unjust enrichment.
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