Musk v. Altman OpenAI Trial Begins in Oakland: What's at Stake

Elon Musk's long-running lawsuit against Sam Altman and OpenAI hit a federal courtroom Monday morning, with jury selection underway in Oakland, California. The civil trial is the highest-stakes legal fight in AI history — Musk is asking for up to $134 billion in damages and wants Altman and President Greg Brockman removed as officers.

Judge Yvonne Gonzalez Rogers is presiding. The case is expected to run roughly four weeks, with Musk, Altman, and Microsoft CEO Satya Nadella all expected to take the witness stand.

What Musk Is Actually Suing Over

Musk co-founded OpenAI with Altman in 2015 as a nonprofit research lab. He left the board in 2018 after a falling-out over control. The core claim in his 2024 lawsuit is that Altman and Brockman manipulated him into funding what they pitched as a public-benefit nonprofit, then quietly steered the organization toward a for-profit structure that has now reached an $852 billion valuation.

The complaint alleges breach of contract, breach of fiduciary duty, false advertising, and racketeering. Musk says he would donate any damages he wins to OpenAI's nonprofit arm — a framing that puts the focus on structure rather than personal payout.

OpenAI's response in court filings: Musk knew about and supported plans to switch to a for-profit entity, and only walked away when the company refused to give him full operational control.

Why this matters: the suit is testing whether AI's biggest commercial player can legally retain its current corporate form. A ruling against OpenAI could force a restructuring that affects every investor in the $122 billion funding round it closed in March.

The Conflict of Interest Question

A key undercurrent in the trial is Musk's own AI company, xAI, which competes directly with OpenAI on frontier models, voice agents, and coding tools. xAI launched Grok 4.3 and Grok Voice Think Fast 1.0 in recent weeks, and Musk has been vocal about catching OpenAI by year-end.

OpenAI's lawyers are expected to argue that Musk's lawsuit is a competitive tactic, not a good-faith governance dispute. Expect both sides to spend significant trial time on Musk's emails and texts from 2017-2018, when the original power struggle played out.

The jury will have to decide whether Musk's status as a competitor undermines his standing to challenge OpenAI's structure on behalf of the nonprofit's mission.

What Nadella's Testimony Could Reveal

Microsoft has invested more than $13 billion in OpenAI and is a central player in any restructuring outcome. Nadella is scheduled for roughly half a day on the stand.

His testimony could expose details about Microsoft's internal view of OpenAI's nonprofit-to-for-profit pivot, the timing of investment commitments, and how much weight OpenAI's mission language carried in deal negotiations. That's information Microsoft has fought to keep out of public view.

If the jury sees Microsoft as a knowing participant in a structural shift away from the nonprofit mission, that's a problem for OpenAI's defense. If Nadella convincingly characterizes the pivot as a normal evolution of a fast-growing research lab, it helps Altman's case.

The Damages Number

The $134 billion figure has gotten the most attention, but the structural relief Musk is asking for matters more. He wants the court to revert OpenAI to a nonprofit and remove Altman and Brockman from leadership.

A nonprofit reversion would unwind years of commercial deals, including the recent $40 billion Google investment, the $122 billion funding round, and Microsoft's existing equity stake. The legal mechanics of doing that are unclear — and likely to spawn years of follow-on litigation.

Most legal analysts see the damages claim as a negotiating anchor rather than a realistic award, but the leadership-removal request is the live wire. A jury siding with Musk on breach of fiduciary duty could give a judge real authority to reshape OpenAI's governance.

Why Now

The trial date matters. It comes weeks after Anthropic's annualized revenue surpassed OpenAI's, after Google announced a $40 billion Anthropic investment, and after OpenAI committed to a 30-gigawatt compute build-out by 2030.

OpenAI is at a structural inflection point. A trial verdict that forces leadership changes or governance restructuring would land at the worst possible moment for the company's commercial momentum — and would hand competitors a meaningful opening.

Anthropic, Google, and xAI are all watching closely. So is the AI policy community in Washington, where the case is being read as a test of whether nonprofit-founded AI labs can credibly transition to for-profit operation.

What Happens Next

Jury selection should wrap this week. Opening statements follow. Musk and Altman are expected on the stand in week two, with Nadella likely in week three. A verdict is unlikely before late May.

If the jury rules for Musk, expect immediate appeals from OpenAI and a stay on any injunctive relief. If the jury rules for Altman, Musk has signaled he'll appeal as well. Either way, this is the start of a much longer fight.

For developers and enterprise buyers, the practical impact in the near term is limited — OpenAI's products and contracts are not directly affected by the trial. But for anyone tracking the corporate structure of frontier AI labs, this trial is the first real test of where the legal lines actually sit.

The bottom line: the verdict won't decide who wins the AI race, but it will set a precedent for how the AI industry's biggest companies are allowed to organize themselves. Watch the Nadella testimony, watch the jury's body language during the email evidence, and watch whether either side signals settlement before closing arguments.