The dispute between Elon Musk and Sam Altman questions the integrity of OpenAI foundational agreements, its transition from a nonprofit entity to a commercial model, the company AI governance, and the impact of corporate alliances on the development of artificial general intelligence (AGI).
On April 28, 2026, a federal trial involving OpenAI Co-Founders Elon Musk and Sam Altman commenced in Oakland, California. The lawsuit alleges that the organization breached its founding mission by prioritizing commercial profits over the public good. Musk is seeking US$150 billion in damages from OpenAI and the removal of Altman as CEO.
The legal foundation of the plaintiff focuses on the preservation of the legal nature of charitable organizations within the technology sector. During opening statements, Steven Molo, Musk’s lead counsel, established the central premise of the case before the nine-person jury.
“OpenAI was created for the benefit of all mankind. To steal a charity is absolutely wrong (and) to allow this would give license to looting every charity in America,” says Molo.
The Evolution of the Conflict
The relationship between Musk and Altman began as a collaboration in 2015. The two men, along with several AI researchers, founded OpenAI as a nonprofit laboratory. The original mission was to ensure that AGI benefits all of humanity. At that time, Musk was a dominant figure in technology due to his work at SpaceX and Tesla, while Altman was primarily known within Silicon Valley for his leadership at Y Combinator.
According to court documents, Musk provided approximately US$44 million in initial funding to support this altruistic vision. The founders vowed to share their technology freely with the world to prevent a monopoly on advanced AI.
However, the internal structure began to shift in 2017. Both Musk and Altman proposed a transition to a for-profit model to attract the massive capital required for data centers and computational power.
Musk reportedly opposed this change unless he was granted absolute control as CEO, a proposal that Altman and Greg Brockman, President, OpenAI, rejected.
In February 2018, Musk resigned from the board of directors. Although the public reason cited was a conflict of interest with AI development at Tesla, legal filings now reveal a deep-seated power struggle. Following the departure of Musk, OpenAI established a for-profit subsidiary.
The subsequent launch of ChatGPT in 2022 and a multi-billion dollar partnership with Microsoft transformed the organization into a commercial powerhouse. Musk filed his lawsuit in 2024, claiming that the defendants manipulated him into providing funding under false pretenses. He argues that the organization has become a closed-source subsidiary of Microsoft, which contradicts the initial 2015 agreement.
The Blockbuster Trial and Implications
The trial is presided over by Yvonne Gonzalez, Judge, US District Court. It is scheduled to last about four weeks in Oakland. The proceedings involve high-profile testimony and a rigorous examination of corporate governance.
The jury was selected on April 27, 2026, following a screening process where potential members shared diverse opinions on the public personas of Musk and Altman. On April 28, 2026, Musk took the witness stand as the first witness called by his legal team. His testimony focused on his history as an entrepreneur and his belief that no individual should be allowed to “steal a charity.”
The court expects to hear testimony from several key industry figures in the coming weeks. Additionally, Shivon Zilis, former Board Member, OpenAI, is slated to testify. Judge Gonzalez Rogers has already ruled on several evidentiary matters, including a request for a gag order. She asked Musk and Altman to keep social media posts to a minimum to ensure a fair trial.
Musk is seeking significant remedies that could alter the trajectory of the AI industry. He is asking for more than US$150 billion in damages from OpenAI and Microsoft. He has committed to directing any monetary award back to the nonprofit arm of OpenAI.
Furthermore, the lawsuit seeks the removal of Altman and Brockman from their leadership positions. Musk also requests that the court halt the recent shift of the company toward a fully for-profit structure and force the organization to return to its open-source roots.
Industry Impact
The outcome of this litigation could redefine the standards for the global technology sector. Industry experts identify three critical areas of impact:
Corporate Philanthropy: Rose Chan Loui, Executive Director, Lowell Milken Center for Philanthropy and Nonprofits at UCLA, says that a win for Musk could protect charitable missions from being commercialized. However, Loui notes that many observers worry about the lack of bias in Musk, given that he operates xAI, a direct competitor to OpenAI.
AGI Market Reconfiguration: If the court mandates the opening of the intellectual property of OpenAI, competitors such as Google, Anthropic, and international entities like DeepSeek would gain access to critical technology. This could level the playing field but might also present safety risks.
Investment Sentiment: Dan Ives, Analyst, Wedbush, says that the trial is a “technological soap opera” that investors are monitoring closely. Ives notes that the exchange of accusations between Musk and Altman is not beneficial for the industry and could complicate the rumored initial public offering of OpenAI, which has a valuation of about US$852 billion.
The trial will examine whether OpenAI breached a contract or if the organization simply adapted its model to achieve success in a capital-intensive race. The jury will provide an advisory verdict in May 2026, after which Judge Gonzalez Rogers will decide on monetary damages and structural remedies.