Elon Musk’s lawsuit against OpenAI, Sam Altman, and Microsoft reached a critical phase this week as closing arguments concluded in an Oakland, California, federal courthouse. The trial, which began last month, centers on Musk’s allegations that OpenAI and its leadership breached their charitable mission by prioritizing profit over the nonprofit’s founding principles of developing safe, open-source artificial intelligence for the public good. A nine-person jury will now deliberate on whether OpenAI and Altman are liable, though their verdict will be advisory, with the final decision resting with the judge .
Musk’s legal team argued that OpenAI executives, particularly Altman, engaged in self-dealing and misused Musk’s donations to enrich themselves through stock grants and financial ties to affiliated entities. Lawyer Steven Molo emphasized Altman’s alleged lack of credibility, citing testimony from former colleagues, including Ilya Sutskever and Mira Murati, as well as ex-board members Helen Toner and Tasha McCauley, to undermine Altman’s claims of transparency . Musk seeks Altman’s removal from OpenAI’s board and billions in damages, though he has stated any financial award would be donated to the nonprofit’s original mission .
OpenAI’s defense countered that the organization’s structure evolved to secure necessary funding while maintaining its core mission. Microsoft, added to the lawsuit in 2024, was accused of aiding OpenAI’s alleged breach of its charitable obligations. The trial has featured high-profile witnesses, including Musk, Altman, OpenAI board chair Bret Taylor, and Microsoft CEO Satya Nadella, offering insights into the contentious history of OpenAI’s formation and governance . If the court rules against OpenAI or Microsoft, a separate phase will determine damages .