Sam Altman’s OpenAI Trial Testimony: Musk’s Control Push, Surviving Claims, and What Comes Next

That testimony fits the broader defense theory OpenAI has been presenting to jurors. In opening statements, OpenAI lawyer William Savitt said the case exists because “Mr. Musk didn’t get his way with OpenAI,” and argued that Musk used funding promises to pressure founders, tried to take control of OpenAI, sought a Tesla merger, and wanted to form a for-profit company in which he would own more than 50%.

OpenAI’s argument is designed to undercut Musk’s claim that he is now defending OpenAI’s nonprofit purity. The defense is effectively saying Musk was comfortable with commercialization when he could dominate the structure. Reuters-based reporting similarly said Altman testified that Musk was interested in seizing control of OpenAI and making money from it.

The Google rivalry also matters to the narrative. Altman said he almost did not start OpenAI because he believed Google was already so far ahead in artificial intelligence. OpenAI’s counsel, meanwhile, argued that what Musk cared about was not OpenAI’s nonprofit status but winning the AI race with Google.

Where Nadella and Taylor fit in

Satya Nadella’s role matters because Microsoft is not just a background investor in this case. ABC7 reported that Nadella took the stand as Musk pursued Microsoft for aiding and abetting a breach of charitable trust, part of the broader case over OpenAI’s structure and mission.

The available excerpts do not provide a detailed account of what Nadella said on the stand. What they do establish is that Nadella’s testimony, alongside testimony from OpenAI co-founder Ilya Sutskever, highlighted the competing narratives in the case. Because Musk’s claims also target the Microsoft relationship, Nadella’s testimony was important to OpenAI’s defense even if the provided record does not support a more specific claim about his exact answers.

Bret Taylor’s testimony is even more limited in the provided material. KTVU reported that Taylor, OpenAI’s board chair, finished testifying shortly before Altman was sworn in. The excerpts do not include the substance of Taylor’s testimony, so it would be unsupported to say he made a particular statement about Musk, Tesla, Microsoft, or OpenAI’s nonprofit commitments.

The strongest witness support for OpenAI’s “control” narrative in the provided excerpts comes from Altman and Brockman. Brockman testified that Musk “gave up” on OpenAI after learning he would not have control, and described Musk reacting angrily in a meeting; Brockman also maintained that OpenAI’s mission had always been his priority.

The claims still alive

The case has narrowed. The surviving trial claims are breach of charitable trust and unjust enrichment. Separately, reporting on Nadella’s testimony describes Musk as suing Microsoft for aiding and abetting a breach of charitable trust.

That narrowing is important. The public fight may sound like a sweeping referendum on OpenAI’s identity, but the legal question now turns on whether Musk can prove the remaining equitable claims and whether OpenAI, Altman, Brockman, or Microsoft were unjustly enriched or breached obligations tied to OpenAI’s charitable mission.

The remedies Musk is pursuing

The clearest remedy documented in the provided reporting is structural and personal: Musk is seeking Altman’s ouster from OpenAI leadership.

A separate trial recap also described Musk as seeking a court order requiring OpenAI to abandon its for-profit corporate conversion and return to a nonprofit structure. The available excerpts do not provide a complete, court-filed list of all remedies still available, so the safest reading is that Musk is pursuing structural relief affecting OpenAI’s governance and direction, with Altman’s role specifically in view.

What happens next

The jury’s role is limited. Reporting on the trial structure says the liability phase was set to run until around May 21, after which the case would go to the jury for an advisory verdict; Judge Gonzalez Rogers would then proceed to the remedies phase. Other reporting similarly states that the jury’s verdict is advisory only and that Judge Gonzalez Rogers will make the final decision on both liability and remedies.

That means a jury finding for Musk would not automatically remove Altman or restructure OpenAI. It would signal how jurors view the evidence, but the judge would still decide whether liability exists and what remedy, if any, should follow.

If the judge finds for Musk on one or both surviving claims, the next fight could focus on governance and structure, including the reported request to remove Altman and any order affecting OpenAI’s commercial direction. If the judge finds for OpenAI, Musk’s remaining claims could fail even after an advisory jury verdict, because the judge retains final authority over liability and remedies.

Bottom line

Altman’s testimony reframed the trial around control: Musk says OpenAI betrayed a nonprofit promise, while OpenAI says Musk once pushed for a commercial structure he could dominate. The decisive moment may not be the jury’s advisory verdict, but Judge Gonzalez Rogers’ final ruling on the two surviving claims and any structural remedy that follows.