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OpenAI chief Altman to take stand in OpenAI-Musk trial on Tuesday

By Thomson Reuters May 12, 2026 | 5:04 AM

May 12 (Reuters) – OpenAI Chief Executive Officer Sam Altman will take the witness stand on Tuesday and Wednesday, the California court said, in a clash of tech titans ​over Elon Musk’s lawsuit against the company.

The trial, in ‌its third week, may determine the future of OpenAI and its leadership, at a time when the company has raised hundreds of billions of dollars from large tech companies and investors, seeking to build out its computing ‌power ​ahead of a potential trillion-dollar IPO.

Musk’s lawsuit ⁠alleges Altman and the ⁠AI startup persuaded him into giving $38 million to nonprofit OpenAI, only for the organization to abandon its charitable mission to benefit humanity and instead become a for-profit corporation. OpenAI says ​Musk knew about the for-profit plan but wanted control.

The faceoff has generated interest throughout Silicon Valley and beyond, with testimony ⁠at times focusing on the personalities ⁠and leadership styles of the two men. Former OpenAI ​chief scientist Ilya Sutskever testified on Monday that he spent about ​a year gathering evidence for the ChatGPT maker’s board ‌that Altman had displayed a “consistent pattern of lying,” for instance.

Several other key witnesses, including current and former OpenAI executives, have testified in the trial so far, among them President Greg Brockman, former ⁠OpenAI technology chief Mira Murati and Shivon Zilis, a former OpenAI board member who is also mother to four of Musk’s children.

Musk, who ⁠is seeking the ‌removal of Altman and Brockman from their roles, ⁠has testified that OpenAI was his idea before ​executives ‌looted it, saying his funding towards OpenAI was “specifically ​meant to ⁠be for a charity”.

Musk also said while he knew about early discussions on turning OpenAI into a for-profit company, he was reassured by Altman that it would remain a nonprofit.

(Reporting by Deborah Sophia in Bengaluru, Deepa Seetharam and Kenrick Cai in Oakland, California; Editing ​by Shilpi Majumdar)