The fight over whether OpenAI is allowed to be a company began deliberations this morning. After six weeks of testimony in the Northern District of California, a nine-person jury — six women, three men — was sent to a Oakland deliberation room on the morning of May 18, 2026, to decide whether Sam Altman and Greg Brockman betrayed the founding charter of the laboratory that built ChatGPT.
Their verdict will be advisory. The final liability ruling belongs to Judge Yvonne Gonzalez Rogers, who has presided since the case was filed in 2024.
§ 01 What the case is actually about
Stripped of theatre, Musk v. Altman is a contract and fiduciary-duty case about a corporate structure. Elon Musk's complaint argues that he co-founded OpenAI in 2015 on an explicit promise: a non-profit, open-source AI laboratory dedicated to humanity. He claims OpenAI's 2025 recapitalization — converting the operating entity into a for-profit subsidiary of the non-profit — broke that promise. Microsoft, OpenAI's largest investor, is a co-defendant on the recapitalization claims.
The relief Musk seeks is unusually structural. He wants Altman and Brockman removed. He wants the for-profit conversion unwound. He wants the disgorgement of "all ill-gotten gains" — a phrase that, depending on how the court reads it, could redirect up to roughly $150 billion of OpenAI and Microsoft value back to the original non-profit. In an earlier filing, Musk sought $134 billion personally.
§ 02 The moments that mattered
Trial week three brought the most-watched testimony of the year: Microsoft chief executive Satya Nadella, called by Musk's team, testified about the 2023 board crisis and the integration negotiations that followed. He defended the recapitalization as a structural necessity for continued investment.
On May 12, Altman took the stand. He testified that Musk had demanded roughly 90 percent ownership and majority board control of OpenAI in conversations during 2017 and 2018, and that he and Brockman refused because it would have replaced one form of concentrated power with another. The same day, Musk admitted under cross-examination that xAI — the lab he founded after departing OpenAI — "distills" OpenAI's models in some of its training pipelines.
You cannot demand 90 percent ownership and majority board control of a non-profit, and then sue when the non-profit you walked away from grows into something larger than you.
From OpenAI's closing argument, May 14, 2026
OpenAI's defense, summarized: there were never structural commitments in writing; the donations Musk made were properly spent; the suit only materialized after xAI launched as a direct competitor. Musk's defense, in turn: a promise made in private is still a promise, and a charter is its written shadow.
§ 03 What happens next
If the jury returns an advisory verdict for Musk, Judge Gonzalez Rogers will then conduct a separate remedies phase — hearings on damages and on the structural relief Musk has asked for. If it returns for OpenAI, the case is not over: the court can still adopt or reject the advisory finding on liability. Either way, an appeal is certain. Either way, Musk flew to China the day after closing arguments.
The deeper question the trial has surfaced has nothing to do with Musk or Altman. It is whether the corporate structures of the foundation-model labs — non-profits that became for-profits, charities that became platforms — can survive contact with the people who signed their founding documents. If the answer is no, the next decade of AI governance does not look like the last.
