A nine-member jury will soon decide whether OpenAI, with a valuation approaching $200 billion, was built on a broken promise, a verdict that could reshape the artificial intelligence industry.
A nine-member jury will soon decide whether OpenAI, with a valuation approaching $200 billion, was built on a broken promise, a verdict that could reshape the artificial intelligence industry.

Closing arguments in the blockbuster trial pitting Elon Musk against OpenAI concluded Thursday, placing the fate of the world’s leading artificial intelligence company into the hands of a nine-member jury. The verdict, expected early next week, could cripple the operator of ChatGPT and realign the AI sector by challenging the legality of the for-profit structure fueled by $13 billion from Microsoft (MSFT).
“Sam Altman’s credibility is directly at issue in this case … If you cannot trust him, if you don’t believe him, they cannot win. It’s that simple,” Elon Musk’s attorney, Steven Molo, said in his closing statement, focusing on the OpenAI CEO’s trustworthiness following his brief ouster and reinstatement in November 2023.
Musk alleges that OpenAI, CEO Sam Altman, and President Greg Brockman committed a “breach of charitable trust” by pivoting from the lab’s founding mission as a non-profit dedicated to benefiting humanity. The lawsuit claims this shift unjustly enriched the founders and Microsoft, particularly after a $10 billion investment in 2023. OpenAI’s defense countered that Musk’s donations were never conditional on remaining a non-profit and that a forensic accountant testified all of Musk’s funds were spent by 2020, before the key Microsoft deals.
At stake is the fundamental structure of a company that has come to define the generative AI boom. A victory for Musk, who is seeking $150 billion in damages, could force OpenAI to unwind its for-profit arm and potentially remove Altman from its board. Such a move would throw its crucial partnership with Microsoft into chaos and create a significant opening for competitors like Alphabet’s (GOOGL) Google and Anthropic in the race to commercialize artificial general intelligence.
The core of the dispute is whether OpenAI’s transformation into a commercial powerhouse betrayed its origins. Musk’s lawyers argue that the 2023 Microsoft investment, part of a total $13 billion commitment, was the definitive step that enriched individuals over the non-profit’s mission of ensuring safe AGI. They contend this deal turned Musk’s initial charitable donations into a vehicle for personal profit, creating a nearly $200 billion equity valuation for the for-profit affiliate.
OpenAI’s attorneys presented a starkly different narrative, portraying Musk as a co-founder who “abandoned OpenAI for dead in 2018.” They argued Musk was aware that significant private capital was essential to fund the immense computing power needed for AGI research. Witnesses testified that Musk himself had attempted to take personal control of a for-profit affiliate and later tried to merge the AI lab into his electric vehicle company, Tesla (TSLA).
The defense has built its case on three key pillars: that the statute of limitations has passed, that Musk’s delay in filing the suit was unreasonable, and that Musk has “unclean hands.” OpenAI’s lead attorney, Bill Savitt, told the jury that Musk’s lawsuit is a case of “sour grapes,” filed only after ChatGPT’s runaway success proved his decision to leave was a miscalculation.
Lawyers for OpenAI argued that Musk was aware of the company’s for-profit direction for years, citing his own public criticisms and the fact that his adviser, Shivon Zilis, had voted to approve the transactions as an OpenAI board member. The defense also claims Musk was actively undermining OpenAI by recruiting its employees for his own AI efforts at Tesla while the lab was still operating on his donations, constituting a conflict of interest.
A verdict against OpenAI could halt its commercial momentum, creating an opening for competitors and casting a pall over Microsoft's stock, which has deeply integrated OpenAI's technology. The jury's decision next week is the next major catalyst for the entire AI sector.
This article is for informational purposes only and does not constitute investment advice.