Elon Musk’s $150 Billion OpenAI Lawsuit: What’s at Stake for the AI Giant’s Future

Table of Contents The long-anticipated courtroom confrontation between Elon Musk and OpenAI has officially commenced. The US District Court for the Northern District of California began jury selection proceedings on Monday, with the substantive trial arguments scheduled to start Tuesday. 🚨MUSK DROPS FRAUD CLAIMS AGAINST ALTMAN – TRIAL SHIFTS FROM JURY TO JUDGE Elon Musk's lawsuit against Altman and OpenAI had four claims going to trial: 1. Breach of charitable trust2. Unjust enrichment3. Promissory fraud4. Constructive fraud On Friday, Elon Musk's lawyers… pic.twitter.com/hFeTFfqYrh — NIK (@ns123abc) April 25, 2026 Musk was among the original founders of OpenAI in 2015, joining forces with Altman and Greg Brockman to launch the venture. According to Musk’s allegations, he contributed more than $44 million to the organization based on assurances it would maintain its nonprofit status. However, official court documentation indicates his actual contributions totaled approximately $38 million during the 2016-2020 period. The crux of Musk’s complaint centers on OpenAI’s transformation into a for-profit enterprise in 2019, which he claims occurred without his knowledge or consent. His lawsuit seeks $150 billion in damages from both OpenAI and Microsoft, with any recovered funds designated for OpenAI’s charitable division. Beyond financial compensation, Musk’s legal action demands OpenAI return to its original nonprofit framework. His petition also calls for the dismissal of Altman and Brockman from their executive roles, along with Altman’s removal from the board of directors. The roster of witnesses scheduled to appear represents Silicon Valley’s elite. Testimony is expected from Elon Musk himself, Sam Altman, and Microsoft’s CEO Satya Nadella, all appearing in person. Shivon Zilis, who previously served on OpenAI’s board and is the mother of four of Musk’s children, will likely provide crucial testimony. Court filings containing internal OpenAI documents expose significant friction among the company’s founding members from the outset. A 2017 diary entry from Brockman questions: “This is the only chance we have to get out from Elon. Is he the ‘glorious leader’ that I would pick?” In a January 2018 email to associates, Musk predicted that “OpenAI is on a path of certain failure relative to Google.” His departure from the board followed shortly thereafter. OpenAI reorganized itself in 2019, establishing a for-profit subsidiary under the oversight of its nonprofit parent organization. By October 2025, it had transitioned to a public benefit corporation structure. Microsoft acquired a 27% ownership position, while OpenAI’s nonprofit entity retained equity valued at $130 billion. The company’s latest financing round assigned it a valuation of $852 billion. OpenAI’s defense argues that Musk was fully informed about the for-profit conversion plans. Furthermore, they contend Musk proposed a merger between OpenAI and Tesla, positioning himself as chief executive. According to OpenAI, Musk’s departure followed Altman and Brockman’s rejection of this proposal, after which he established his competing artificial intelligence venture, xAI. Microsoft maintains it engaged in no collusion with OpenAI, emphasizing that its partnership commenced only after Musk’s exit from the organization. The litigation poses significant risks to OpenAI’s public listing strategy, which analysts project could achieve a $1 trillion market capitalization. A succession of potentially damaging revelations during trial proceedings may substantially complicate those plans. The jury will deliver an advisory verdict only. Final authority rests with US District Judge Yvonne Gonzalez Rogers. Should the defendants be held liable, the judge possesses authority to mandate OpenAI’s reversion to nonprofit status. Proceedings are projected to continue through the middle of May. Discover top-performing stocks in AI, Crypto, and Technology with expert analysis.