Jury leaves for the day, judge meets with lawyers
Elon Musk is questioned by Russell Cohen, a lawyer for Microsoft, during Musk’s lawsuit over OpenAI for-profit conversion at a federal courthouse in Oakland, California, U.S., April 30, 2026 in a courtroom sketch.
Vicki Behringer | Reuters
Judge Gonzalez Rogers is letting the jury go a few minutes early so that she can confer with the lawyers about an objection. There are no proceedings tomorrow, so the next time the jury will be back in court is on Monday morning.
Gonzalez Rogers gave the jurors strict instructions not to speak about the case or carry out any research about it over the next three days. The jury left the courtroom, and lawyers for Musk and OpenAI are awaiting further instructions.
—Ashley Capoot
Birchall’s testimony winds down
OpenAI’s attorney, Wilson, concluded his questioning. A lawyer representing Microsoft briefly stood up to ask Birchall a few questions. That exchange lasted less than five minutes.
Now, Musk’s lawyer, Kry, is carrying out his redirect. Court is only in session for 20 more minutes, so Birchall’s testimony could conclude the day.
—Ashley Capoot
Birchall unsure if OpenAI donations by Musk came with restrictions
Jared Birchall is questioned by Robert Kry, Elon Musk’s lawyer, during Musk’s lawsuit over OpenAI for-profit conversion at a federal courthouse in Oakland, California, U.S., April 30, 2026, in a courtroom sketch.
Vicki Behringer | Reuters
Bradley R. Wilson, an attorney for OpenAI, asked Birchall a series of questions about funds that Musk put into “DAFs,” or donor-advised funds, managed by Vanguard and Fidelity.
The lawyer asked if Birchall knew whether Musk had any legal right to direct where the funds should go once he contributed them to a DAF. Birchall said he was not a lawyer, and did not know precisely.
Wilson’s questions and Birchall’s answers suggested that OpenAI leaders believed they were free to use funds that Musk donated however they wished, and that their use was not restricted by Musk or his offices in any formal way.
—Lora Kolodny
Birchall’s testimony will resume after a 20-minute break
The judge ordered a 20-minute recess. Everyone is filing out of the courtroom to stretch their legs.
Birchall’s testimony will resume after the break.
—Ashley Capoot
Birchall asked about bid by Musk-led group to acquire OpenAI
Musk’s lawyer, Kry, has finished questioning Birchall. Kry asked Birchall to explain his understanding of why a Musk-led group of investors made a multi-billion-dollar bid to acquire OpenAI last year.
Birchall testified that it was meant to set a market value for OpenAI’s assets that would prevent the diminishment of the value of those holdings.
An attorney for OpenAI, Bradley Wilson, is questioning him now. He’s asking about Birchall about his many roles across Musk’s companies.
—Ashley Capoot
Birchall explains Musk’s specific donations to OpenAI
Jared Birchall, the head of Elon Musk’s family office Excession LLC, departs from federal court in Los Angeles, California, U.S., on Wednesday, Dec. 4, 2019.
Patrick T. Fallon | Bloomberg | Getty Images
Musk’s lawyer is asking Birchall to explain various financial documents and walk through the specific, individual donations that Musk made to OpenAI.
Birchall’s answers are short and concise. Questioning is moving quickly.
—Ashley Capoot
Who is Jared Birchall, head of Musk’s family office?
Jared Birchall, who is the managing director of Elon Musk’s family office Excession LLC, was called to testify in Musk v. Altman on Thursday.
Birchall said he started working for Musk in 2016 after an un-named, mutual acquaintance recruited him.
Before managing Musk’s billions and becoming the CFO of the Musk Foundation, Birchall worked as a financial analyst at Goldman Sachs in Los Angeles, in the Merrill Lynch private banking and investment group as a financial advisor, and was a senior vice president at Morgan Stanley’s Private Wealth Management group.
Birchall oversaw donations by Musk to OpenAI. He was asked to confirm timing, totals and other details around those transactions as his testimony began.
—Lora Kolodny
Musk concludes testimony, next witness is called to the stand
Musk concludes his testimony. Judge Gonzalez Rogers said he is not excused, but that he can leave for the day. Musk stepped down from the stand and walked out of the courtroom.
Jared Birchall, who manages Musk’s family office, just took the stand. Musk’s lawyer, Robert Kry, is asking him questions.
—Ashley Capoot
Judge reprimands OpenAI lawyer, reminds Musk he is not a lawyer
At the end of Savitt’s cross-examination of Musk, Judge Yvonne Gonzalez Rogers reprimanded the attorney for Sam Altman, telling him he must allow Musk to complete his answers and not interrupt to ask another question.
Musk had attempted to paint Savitt as asking improper, “leading” questions and “leading answers.”
The judge then confronted Musk and informed the jury that Musk is not a lawyer, and is not an expert on evidence or other matters concerning lawyers’ allowable questions and exhibits.
The judge said Musk is not a lawyer and has “not taken a class in evidence.” Musk retorted that he has “technically” taken “law 101,” garnering some laughter in the courtroom.
Savitt apologized to Musk and the judge, saying he was concerned about getting his last questions in within his limited time.
—Lora Kolodny
Proceedings are back underway, Musk is still on the stand
Elon Musk is questioned by Russell Cohen, a lawyer for Microsoft, during Musk’s lawsuit over OpenAI for-profit conversion at a federal courthouse in Oakland, California, U.S., April 30, 2026 in a courtroom sketch.
Vicki Behringer | Reuters
The court is back in session. Musk’s lawyer, Molo, sits down after completing his redirect. It lasted for roughly 10 more minutes after the break.
OpenAI’s attorney, Savitt, is back up asking Musk questions. This is called a recross-examination.
Altman and Brockman have not returned to the courtroom after the break.
—Ashley Capoot
Court is in recess for 20 minutes
The court just recessed for a 20-minute break. Musk, Altman and Brockman all left the room.
Musk’s testimony will continue when everyone comes back.
—Ashley Capoot
Musk is still on the stand, his attorney is asking him more questions
The redirect portion of Musk’s testimony is underway. Musk’s attorney, Steven Molo, is back up asking him questions.
Molo is pulling up a number of exhibits, including OpenAI’s incorporation documents, its charter and its launch announcement, that explain the company’s nonprofit structure and its charitable mission. Musk says these documents assured him that OpenAI would be unconstrained by a need to generate a financial return.
“That was the entire basis for my charitable giving,” Musk testified.
—Ashley Capoot
Tesla does not plan to develop artificial general intelligence, Musk testifies
Didem Mente | Anadolu | Getty Images
Under oath on Thursday, Musk said that his automaker, Tesla, is not developing and has no plans to develop artificial general intelligence or “AGI.”
Tesla makes electric vehicles and battery energy storage systems, and is developing a humanoid robot called Optimus, with its capabilities powered by AI.
A day earlier in the trial, Musk was asked by his rivals’ attorney whether Tesla competed with OpenAI for talent and in terms of product development. Musk repeatedly claimed that the two were not in direct competition, although Tesla had hired Andrej Karpathy, a respected AI expert, who Musk said was already planning to leave OpenAI.
On Thursday, Musk’s attorney Steve Molo asked him during a redirect, “Does Tesla currently have any concrete plans to pursue AGI?” And Musk said “No.” Then Molo asked him, “How does Tesa’s AI compare to the work on AI that OpenAI is doing?”
Musk explained that, “Tesla’s AI is meant for self-driving cars. As opposed to, you know, it’s not a giant AI model that can answer any question.”
Tesla has invested $2 billion into xAI, and has integrated a version of its Grok AI chatbot into Tesla vehicles’ media and navigation systems.
Molo also asked if Tesla is making a “military army of robots.” Musk said, “No,” and “We do not make any weapons.” Musk added, “If we make a lot of robots, we’ve got to make sure that they are safe and do not turn into a Terminator situation.”
—Lora Kolodny
Microsoft concludes brief cross-examination if Musk
Microsoft’s lawyer, Russell Cohen, concludes a very brief cross-examination of Musk. It lasted for roughly 10 minutes.
Cohen pulled up a couple of exhibits where Musk had written that OpenAI should be more open. He then pulled up texts between Altman and Musk, where Altman assured Musk that users other than Microsoft would continue to be able to access its models.
—Ashley Capoot
OpenAI concludes its cross-examination of Musk
William Savitt, lead attorney for OpenAI, arrives at the federal courthouse during proceedings in the trial over Elon Musk’s lawsuit against OpenAI in Oakland, California, on April 30, 2026.
Josh Edelson | AFP | Getty Images
OpenAI’s attorney, Savitt, concludes his cross-examination of Musk. He finished his line of questioning by asking Musk about a variety of initiatives at the OpenAI nonprofit, including different commitments and projects.
“I don’t know everything they’ve done,” Musk testifies. “I don’t know what’s going on at OpenAI.”
—Ashley Capoot
Musk sees his Tesla, SpaceX, for-profit companies as ‘socially beneficial’
Elon Musk arrives at the federal courthouse during proceedings in the trial over his lawsuit against OpenAI in Oakland, California, on April 30, 2026.
Josh Edelson | Afp | Getty Images
Savitt moved to portray Musk’s views about for-profit companies as inconsistent or hypocritical on Thursday, with a line of questioning about his many businesses.
The attorney asked if Musk’s other companies — electric vehicle maker Tesla, re-usable rocket maker SpaceX, and the brain computer interface company Neuralink, and social network X (formerly Twitter) — are “socially beneficial” in his view.
Musk said, “Tesla is trying to advance sustainable energy. I believe that’s a good thing.”
He said “yes” that his other companies were socially beneficial, even though they are all for-profit businesses without profit caps.
—Lora Kolodny
Musk pressed on xAI conversion from benefit corp to C-corp
Savitt continued his cross-examination of Musk, asking why xAI started in March 2023 as a benefit corporation but then changed into a c-corp.
As a Nevada benefit corporation, xAI was obligated to deliver environmental and social benefits apart from its financial goals.
Musk said that a “b-corp” and “c-corp,” were essentially the same thing in his view. Savitt then asked if xAI shed its benefit corporation status to make fundraising easier for the tech startup. Musk said, “Maybe.”
—Lora Kolodny
Musk questioning is moving quickly, OpenAI lawyer asks about xAI
OpenAI’s attorney, Savitt, is cool and collected this morning. He is moving quickly through his questions, and Musk has been pretty direct with his answers so far. He is answering many questions with a simple “yes,” “no,” or “I don’t know.”
Savitt presses Musk about his own AI startup, xAI, and whether it has followed best safety practices he espouses, including open sourcing its models. Not all AI models from xAI have been open-sourced yet, Musk confirms on the stand.
Savitt also asks if xAI has used OpenAI’s models to help develop or test its own models. Musk said this is standard practice in the field.
—Ashley Capoot and Lora Kolodny
Musk is back on the stand
Proceedings are underway and Musk is back on the witness stand.
OpenAI’s laywer, Savitt, is having the courtroom watch a video from Musk’s deposition. The video is about Musk’s recollection of a term sheet from 2018, which was a flash point during his testimony on Wednesday.
Musk said Wednesday that he read the very first part of the term sheet and gleaned the high-level details. Savitt says Musk made no mention in any of his depositions about having read the term sheet in any capacity. The back and forth about this issue was the most heated moment from the cross-examination on Wednesday.
–Ashley Capoot
Judge warns Musk attorneys the trial is not about AI safety risks
Elon Musk walks to attend the trial in his lawsuit over OpenAI for-profit conversion at a federal courthouse, in Oakland, California, U.S., April 30, 2026.
Manuel Orbegozo | Reuters
Before jurors entered the courtroom, Musk’s lead attorney Steve Molo asked Judge Yvonne Gonzalez Rogers to clarify what a key expert witness, Professor of Computer Science at UC Berkeley Stuart Russell, will be permitted to discuss on the stand.
“The expert will not testify outside the confines of their report and anything disclosed during their deposition,” the judge said, making a quip that “Despite the movies, we don’t have big surprises at trials.”
Molo argued that Russell should be able to discuss the possibility that artificial intelligence could cause “extinction” or climate catastrophes, because the researcher had alluded to these in a paper.
Raising his voice, Molo implored the judge, “We all could die! We all could die as a result of artificial intelligence!”
The judge noted there is irony that Musk, despite these risks, “is creating a company in the exact space,” as OpenAI.
“I suspect there are plenty of people who do not want to put the future of humanity in Mr. Musk’s hands. But it doesn’t matter. We are not going to get into those issues,” the judge said. “The question here is about whether there was a breach of charitable trust. This is not a trial on the safety risks of artificial intelligence.”
—Lora Kolodny
Musk, Altman and Brockman are in the courtroom
Musk just entered the courtroom and sat down at a table with his lawyers. He is wearing a black suit with a black tie.
Altman and Brockman are also here. They are both wearing blue suits.
—Ashley Capoot
People are getting settled in the courtroom
I just took my seat inside the courtroom. Lawyers, other reporters and members of the public are still filing in.
There’s no sign of Musk, Altman or Brockman yet.
—Ashley Capoot
OpenAI’s lawyer will face off with Musk again
William Savitt, lead attorney representing OpenAI and Sam Altman, speaks to the press outside the Ronald V. Dellums US Courthouse where the Elon Musk v OpenAI trial proceeded for its third day in Oakland, California, on April 29, 2026.
Amy Osborne | AFP | Getty Images
Musk will square off with OpenAI’s lawyer, Savitt, again on Thursday.
The pair butted heads repeatedly during Musk’s cross-examination on Wednesday. Musk accused Savitt of lying and trying to trick him.
When Savitt said he was asking Musk a simple question, for example, Musk retorted, “Your questions are definitionally complex, not simple. It is a lie to say they are simple.”
After the court recessed on Wednesday, Savitt expressed his frustration with Musk to the judge. He said it had been difficult to get him to answer questions.
“That is the challenge of all litigants,” Gonzalez Rogers responded.
—Ashley Capoot
Three takeaways from Musk’s testimony on Wednesday
Elon Musk speaks with U.S. District Judge Yvonne Gonzalez Rogers during his cross examination by OpenAI attorney William Savitt as OpenAI CEO Sam Altman watches, during Musk’s lawsuit trial over OpenAI’s for-profit conversion at a federal courthouse in Oakland, California, U.S., April 29, 2026 in a courtroom sketch.
Vicki Behringer | Reuters
Musk testified for roughly five hours on Wednesday. Here are the main ideas he discussed.
- Musk repeatedly emphasized that he is not opposed to OpenAI’s for-profit subsidiary outright. He said he thinks it’s fine for a small for-profit arm to help support the nonprofit, but that he does not think it’s acceptable for the for-profit arm to become the “main event.” He said he was “a fool” for donating $38 million to OpenAI, because he said it was used to create an $800 billion for-profit startup.
- Musk tried to explain to the jury why he waited so long to file his lawsuit. He said he began to have some concerns and doubts about the company around 2017 and 2018, but that he was not convinced that wrongdoing occurred until later. “I would’ve filed a lawsuit sooner if I thought they’d stolen the charity sooner,” he testified.
- Musk said Microsoft’s $10 billion investment into OpenAI in 2023 was the tipping point where he grew convinced Altman and Brockman were trying to “steal the charity.” It prompted him to ask for a legal investigation into OpenAI. He said he had already “lost trust” in Altman by late 2022.
–Ashley Capoot
OpenAI’s nonprofit/for-profit structure
In October, OpenAI completed a recapitalization that cemented its structure as a nonprofit with a controlling stake in its for-profit business.
OpenAI briefly considered transitioning into a completely for-profit company in 2024, but it changed its plans after it received pushback, including from Musk.
The company launched its for-profit subsidiary after Musk left the board in 2018.
Musk testified that OpenAI’s for-profit arm has become the “main event,” and that it’s taken the money, talent and resources away from the nonprofit.
—Ashley Capoot
