May 14, 2026
Elon Musk's counsel urged a California federal jury during trial closings Thursday to find OpenAI breached its charitable trust aided by Microsoft Corp. and slammed OpenAI CEO Sam Altman's credibility, while OpenAI's counsel argued Musk is trying to attack his competitor and urged jurors to ask themselves, "Who's telling the truth?"
May 13, 2026
Microsoft's chief technology officer testified in a California federal jury trial Wednesday over Elon Musk's challenge to OpenAI's for-profit conversion, recalling that he proposed Microsoft invest significant resources into OpenAI's for-profit arm to stay competitive despite his initial concerns over whether OpenAI's nonprofit donors had agreed to the for-profit partnership.
May 12, 2026
OpenAI Inc. CEO Sam Altman took the stand Tuesday in the California federal jury trial over Elon Musk's challenge to OpenAI's for-profit conversion, acknowledging that colleagues have accused him of being deceptive while testifying that "I believe I'm a trustworthy person."
May 11, 2026
Microsoft CEO Satya Nadella testified Monday in a California federal jury trial over Elon Musk's challenge to OpenAI's for-profit conversion, denying that he demanded OpenAI's board reinstate ousted CEO Sam Altman while acknowledging that he offered to pay up to $29 billion to bring Altman and others to Microsoft.
May 07, 2026
California federal jurors weighing Elon Musk's challenge to OpenAI's for-profit conversion on Thursday watched prerecorded testimony from a former OpenAI board member who voted to oust CEO Sam Altman in 2023 over concerns his pattern of lies and deception fostered a "toxic culture of lying."
May 06, 2026
Ex-OpenAI board member Shivon Zilis, who has four children with Elon Musk, took the stand in a California federal jury trial Wednesday over Musk's challenge to OpenAI's for-profit conversion, defending her role as an intermediary between Musk and other OpenAI founders and testifying she twice raised concerns over Sam Altman's leadership.
May 05, 2026
OpenAI President Greg Brockman defended OpenAI's for-profit conversion during a California federal jury trial Tuesday and accused Elon Musk of demanding "unilateral absolute control" over OpenAI to fund his plans for a city on Mars, while acknowledging under examination that Musk proposed his stake would "change quickly" with additional investors.
May 04, 2026
OpenAI President Greg Brockman's private journal took center stage Monday in a California federal jury trial over Elon Musk's challenge to OpenAI's for-profit conversion, revealing that just days after telling Musk that OpenAI would remain a nonprofit, Brockman privately asked himself, "What will take me to $1B?"
May 01, 2026
The California federal judge presiding over Elon Musk's challenge to OpenAI's for-profit conversion criticized Musk's attorney Marc Toberoff on Friday for eliciting "waste of time" trial testimony into Musk's $97.4 billion acquisition bid, warning Toberoff he "shouldn't throw young lawyers under the bus" by not quickly acknowledging his role.
April 30, 2026
A California federal jury trial over Elon Musk's challenge to OpenAI's for-profit conversion paused on a precarious note Thursday after Musk's legal team failed to object to a document during Musk's cross-examination, and inadvertently opened the door to wide-ranging and potentially damaging evidence into Musk's $97.4 billion acquisition proposal.