- Kolter concludes his testimony, leaves the courtroom
- Altman concludes his testimony, leaves the courtroom
- Altman: Amazon, Nvidia and SoftBank every invested extra money in OpenAI than Microsoft
- Altman has been much less combative than Musk throughout cross-examination
- Court docket breaks for recess
- Cross-examination: Altman pressed about his relationship with Musk
- Musk lawyer seeks to color Altman as not reliable
- Altman says he was ‘utterly caught off guard’ by his ouster in 2023
- This is what it is like contained in the courtroom
- Court docket breaks for recess
- Altman says his view on Shivon Zilis’ board position modified after Musk started work on OpenAI rival
- Why Altman and OpenAI rejected Musk pitch to merge into Tesla
- Altman says Musk’s departure from OpenAI was a ‘morale enhance’ for some researchers
- Taylor stated in 2023 textual content that he would solely be a part of board if Altman have been reinstated
- Altman says Musk needed to cross a controlling stake in OpenAI to his youngsters
- OpenAI board observer from Microsoft was not a part of delicate discussions, Taylor says
- Altman takes the witness stand
- Taylor’s cross-examination is underway
- Taylor takes the stand, Altman watches from the courtroom
- After Altman, OpenAI chief futurist, and security chair anticipated to testify
- Legal professionals, reporters and members of the general public are heading into the courtroom
- Altman faces authorities inquiry over potential conflicts of curiosity
- This is what Bret Taylor has stated up to now
- Takeaways from Microsoft CEO Satya Nadella’s testimony
Kolter concludes his testimony, leaves the courtroom
Witness and board member at OpenAI Zico Kolter arrives on the courthouse on the day of the trial in Elon Musk’s lawsuit over OpenAI for-profit conversion at a federal courthouse in Oakland, California, U.S., Might 12, 2026.
Manuel Orbegozo | Reuters
Kolter concluded his testimony after roughly 20 minutes of questioning. He spoke about his position at OpenAI, the position of its Security and Safety Committee and the way the corporate evaluates the protection of AI fashions.
He stated that he has been concerned in two situations the place there was a proper request for a delay earlier than OpenAI launched a mannequin. He stated there have been many different occasions when he and others requested extra details about a mannequin forward of its launch.
Kolter stepped down from the witness stand and left the courtroom.
–Ashley Capoot
Altman concludes his testimony, leaves the courtroom
Altman simply concluded his testimony and stepped down from the witness stand.
He walked out of the courtroom, following behind Brockman, who additionally left.
Zico Kolter, an OpenAI Basis board member and chair of the Security and Safety Committee on the firm, is testifying now.
–Ashley Capoot
Altman: Amazon, Nvidia and SoftBank every invested extra money in OpenAI than Microsoft
CEO of OpenAI Sam Altman walks on the courthouse throughout a recess of the trial in Elon Musk’s lawsuit over OpenAI for-profit conversion at a federal courthouse in Oakland, California, U.S., Might 12, 2026.
Manuel Orbegozo | Reuters
Altman testified that Amazon, Nvidia and SoftBank every invested extra in OpenAI than Microsoft.
Microsoft is called in Musk’s go well with in opposition to Altman, however Amazon, Nvidia and SoftBank are usually not.
In February, OpenAI introduced $110 billion in new funding at a pre-money valuation of $730 billion. The spherical consists of $30 billion from SoftBank, $30 billion from Nvidia and $50 billion from Amazon.
A lawyer representing Musk requested Altman if SoftBank’s $30 billion funding was greater than Microsoft’s, which quantities to $13 billion.
“About 2.5 occasions bigger,” Altman replied. “I tripped up on that.”
Musk first filed the lawsuit that led to the jury trial in 2024.
—Jordan Novet
Altman has been much less combative than Musk throughout cross-examination
Altman’s cross-examination has regarded a lot totally different from Musk’s up to now.
Musk testified late final month, and he was very combative whereas OpenAI’s lawyer, William Savitt, requested him questions. Musk accused Savitt of mendacity, asking deceptive questions and questions that have been designed to trick him. The pair argued forwards and backwards on a number of events, and each males raised their voices.
Altman has been a lot much less argumentative throughout his testimony, although he has pushed again on some questions. He has not yelled or raised his voice considerably. He appeared nervous because the cross-examination kicked off, particularly whereas Musk’s lawyer, Steven Molo, was seemingly making an attempt to color him as untrustworthy.
–Ashley Capoot
Court docket breaks for recess
The court docket simply broke for a 20-minute recess. Altman’s cross-examination will proceed when proceedings resume. He stepped down from the witness stand after Decide Gonzalez Rogers gave him agency directions to not focus on his testimony with anybody.
Altman appeared barely nervous because the cross-examination acquired underway. He was talking quietly, taking lengthy pauses and stumbling often. By the point the proceedings paused, he appeared extra snug.
—Ashley Capoot
Cross-examination: Altman pressed about his relationship with Musk
OpenAI CEO Sam Altman arrives to court docket on the Ronald V. Dellums Federal Constructing on Might 12, 2026 in Oakland, California.
Benjamin Fanjoy | Getty Pictures
In a tense cross-examination, Musk’s lawyer Steven Molo requested Altman a few textual content he despatched to Musk on February 18, 2023, through which the OpenAI CEO wrote, “I am tremendously grateful for the whole lot you have finished to assist. I do not suppose that OpenAI would have occurred with out you.”
Molo requested if Altman had modified his view since then.
“I’ve modified my view on Elon considerably,” Altman stated.
Molo then requested if Altman is, “an individual who will inform folks issues since you imagine that is what they wish to hear,” quite than saying true issues.
“No, I’ve difficult emotions about Elon,” Altman countered, with Molo chopping him off and saying he was not asking in regards to the CEO’s emotions about Musk.
—Lora Kolodny
Musk lawyer seeks to color Altman as not reliable
OpenAI Chief Govt Sam Altman is questioned by OpenAI’s lawyer Invoice Savitt throughout Elon Musk’s lawsuit trial over OpenAI’s for-profit conversion at a federal courthouse in Oakland, California, U.S., Might 12, 2026 in a courtroom sketch.
Vicki Behringer | Reuters
Steven Molo, a lawyer representing Musk, pressed Altman, making an attempt to color him as not reliable.
Molo requested about considerations about honesty from a number of folks Altman has interacted with, together with staff of startup Loopt, Anthropic CEO Dario Amodei, and former OpenAI board members Tasha MacCauley and Sue Yoon.
Molo additionally referred to a New Yorker journal article with the title, “Sam Altman Might Management Our Future — Can He Be Trusted?”
“Are you utterly reliable?” Molo requested Altman.
“I imagine so,” Altman stated.
“However you do not know whether or not you are utterly reliable,” Molo responded.
“I am going to simply amend my reply to sure,” Altman stated.
Molo requested if Altman all the time tells the reality.
“I imagine I am a truthful individual,” Altman answered.
Altman stated he didn’t wish to communicate for different individuals who had made claims about him.
Molo requested if Altman was conscious of testimony from Ilya Sutskever, one other OpenAI co-founder, on Monday, suggesting that Altman had proven a sample of mendacity. Altman stated he hadn’t had an opportunity to take heed to the testimony.
In 2023, when the OpenAI board pushed out Altman as CEO, they argued that he was “not persistently candid in his communications with the board, hindering its potential to train its tasks.”
Molo requested Altman about his stake in synthetic intelligence chip firm Cerebras, which is about to go public this week, and discussions a few potential merger of OpenAI and Cerebras.
Molo requested if Altman might cite any e mail through which he informed Musk that he was a Cerebras investor.
Altman stated he wasn’t conscious of any e mail like that on the time.
— Jordan Novet
Altman says he was ‘utterly caught off guard’ by his ouster in 2023
Altman is answering questions in regards to the tumultuous few days when he was briefly ousted as CEO of OpenAI in 2023.
He stated he was “utterly caught off guard” and “fairly shocked” by the board’s choice to take away him, and that he didn’t get a lot of an evidence as to why, aside from that he had not been persistently candid in his communications.
Altman stated he was very indignant and damage as these occasions unfolded. He stated he had poured years of his life into OpenAI, and he was “watching it about to be destroyed.”
“I used to be not making an attempt to deceive the board,” Altman testified.
—Ashley Capoot
This is what it is like contained in the courtroom
Greg Brockman, president and co-founder of OpenAI Inc., arrives on the federal court docket in Oakland, California, US, on Monday, Might 4, 2026.
David Paul Morris | Bloomberg | Getty Pictures
The courtroom is packed for Altman’s testimony. I’m seated on the left aspect of the room on a wood bench with different members of the media.
The witness stand, the place Altman is perched, is correct subsequent to Decide Gonzalez Rogers’ seat. He has been calm and picked up whereas answering questions up to now.
Musk’s legal professionals are gathered round a desk in entrance of the witness stand, which is roofed in laptops, binders, cables and water bottles. Legal professionals representing OpenAI, Altman and Brockman are sitting at an analogous desk on the appropriate aspect of the room.
Brockman arrived within the courtroom shortly after Altman took the stand, and he has been watching the proceedings. I noticed him carrying a small pillow to take a seat on. The benches can get fairly uncomfortable.
—Ashley Capoot
Court docket breaks for recess
The court docket simply broke for a recess after a candy second within the courtroom. Decide Gonzalez Rogers identified that it occurs to be Juror Appreciation Week in California, which was met with smiles and laughter from the room.
Gonzalez Rogers thanked the jurors for his or her contributions, after which everybody filed out for a break. Proceedings will likely be again underway in a couple of minutes.
–Ashley Capoot
Altman says his view on Shivon Zilis’ board position modified after Musk started work on OpenAI rival
Shivon Zilis, former board member of OpenAI Inc., arrives on the federal court docket in Oakland, California, US, on Wednesday, Might 6, 2026.
David Paul Morris | Bloomberg | Getty Pictures
Altman stated he turned much less snug with having Shivon Zilis sit on the nonprofit’s board when he realized that Musk was establishing an organization that may compete with OpenAI.
Zilis was an advisor to OpenAI between 2016 and 2019, and he or she held a board seat from 2020 to early 2023, in response to her Linkedin profile. Starting in 2017, she held roles at Tesla and Musk’s brain-machine interface firm Neuralink.
Altman testified that when Zilis got here to the board, he thought Zilis “simply had an expert relationship” with Musk.
In 2021 he discovered Zilis had youngsters, however it wasn’t till 2022 that he realized Musk was the daddy, Altman stated.
In 2022, Enterprise Insider reported on paperwork exhibiting that Musk was the daddy of twins with Zilis.
Zilis had conveyed to Altman that she did not have a private relationship with Musk.
“I trusted her on that,” Altman stated. It was an in depth name for OpenAI’s board, however Altman stated he needed to maintain Zilis shut due to her proximity to Musk, and board members finally determined to let her keep.
Then board members realized that Musk was creating a brand new AI lab, xAI, and at the moment, Zilis was nonetheless working with Musk, Altman stated.
The association appeared “untenable,” Altman stated.
— Jordan Novet
Why Altman and OpenAI rejected Musk pitch to merge into Tesla
An Elon Musk signal sits in a bush the federal courthouse throughout proceedings within the trial over Elon Musk’s lawsuit in opposition to OpenAI in Oakland, California, on April 30, 2026.
Josh Edelson | AFP | Getty Pictures
OpenAI lead counsel William Savitt requested Altman to debate the varied proposals that Musk and his staff had made regarding the firm’s destiny, fundraising wants and future construction.
Altman testified that after Musk did not persuade OpenAI to present him a controlling stake in a for-profit subsidiary, the Tesla and SpaceX CEO started to “push” extra for the chance that the corporate would change into a division of his automaker.
Savitt confirmed Altman and the jury messages from November 2017 through which Musk’s worker, Sam Teller, wrote that Musk, “stays very open to the concept of you becoming a member of the Tesla board as a part of this, which i believe can be nice.”
Teller added that Musk was “dedicated” to constructing a robust group inside Tesla for AI {hardware} and software program and he hoped Altman, together with Brockman and Ilya Sutskever can be concerned.
Altman stated he learn this message as Musk telling him he would compete inside Tesla with or with out OpenAI’s participation, however he had considerations about “the Tesla path” for OpenAI.
“Tesla is a automobile firm, and it doesn’t have the mission of OpenAI,” Altman stated, including that becoming a member of it will destroy the corporate’s potential to observe its mission, and a merger would have additionally “possibly destroyed” the nonprofit.
— Lora Kolodny
Altman says Musk’s departure from OpenAI was a ‘morale enhance’ for some researchers
Altman stated that Musk’s departure from OpenAI’s board in 2018 sparked each concern and a few aid internally.
He testified that individuals had questions on how OpenAI can be funded, and whether or not he would search “vengeance” in opposition to the corporate. However Altman stated that Musk’s departure was additionally a “morale enhance” for some researchers, who had been “demotivated” by his administration techniques.
At one level, Altman stated Musk instructed Brockman and Ilya Sutskever, one other OpenAI co-founder, to rank researchers and fireplace lots of them. Altman stated this did injury to the corporate.
“I do not suppose Mr. Musk understood the best way to run analysis lab,” he testified.
Altman stated Musk’s administration model might have labored higher in his factories.
–Ashley Capoot
Taylor stated in 2023 textual content that he would solely be a part of board if Altman have been reinstated
Bret Taylor, chairman of the OpenAI board, arrives to court docket on the Ronald V. Dellums Federal Constructing on Might 12, 2026 in Oakland, Calif.
Benjamin Fanjoy | Getty Pictures
After OpenAI’s nonprofit board briefly ousted Altman in 2023, Taylor stated in a textual content message that he would solely be a part of OpenAI’s board if Altman was reinstated and can be on the board as properly.
A lawyer representing Musk confirmed the textual content message to Taylor on the witness stand and requested if, when Taylor set forth that requirement, he had decided at that time that Altman was a liar or hadn’t all the time been clear with the board.
“That is right,” Taylor replied. “I didn’t know all of the info on the time.”
Taylor stated he had recognized Altman for a few decade by then.
— Jordan Novet
Altman says Musk needed to cross a controlling stake in OpenAI to his youngsters
Elon Musk, chief government officer of Tesla Inc., contained in the federal court docket in Oakland, California, US, on Thursday, April 30, 2026.
David Paul Morris | Bloomberg | Getty Pictures
Protection lead counsel William Savitt requested Altman about his discussions with Musk over his stake in a potential for-profit affiliate of OpenAI.
“He solely trusted himself to make non-obvious selections,” Altman stated.
“Elon had lengthy since determined for the remainder of his profession he was solely gonna work on firms that he completely managed,” he stated.
Altman stated the concept of giving Musk a controlling stake in OpenAI long-term made him “extraordinarily uncomfortable,” including that his cofounders shared lots of his considerations.
The cofounders requested Musk about what ought to occur to his OpenAI controlling stake if he died. Altman stated his response was unsatisfactory to him and others as a result of Musk stated maybe his controlling shares and votes ought to cross to his youngsters.
—Lora Kolodny
OpenAI board observer from Microsoft was not a part of delicate discussions, Taylor says
Bret Taylor testifies throughout Elon Musk’s lawsuit trial over OpenAI’s for-profit conversion at a federal courthouse in Oakland, California, U.S., Might 12, 2026 in a courtroom sketch.
Vicki Behringer | Reuters
Dee Templeton, the Microsoft government who joined the nonprofit’s board after Altman’s temporary ouster, wasn’t concerned with delicate deliberations, Taylor stated.
The assertion got here in response to questions from Jay Jurata, a Dechert lawyer representing Microsoft within the Musk v. Altman trial.
Templeton, right now a Microsoft company vp and deputy chief know-how officer, attended one or two OpenAI nonprofit board conferences, Taylor stated.
Taylor stated he wasn’t certain why Templeton acquired a spot on the board, however understood why Microsoft would have some form of illustration, provided that “The corporate had just lately virtually imploded.”
Jurata requested Taylor if Templeton, as a board observer, had voting rights, and Taylor stated she didn’t.
Then Jurata requested if the board observer had been a part of “competitively delicate discussions” that concerned OpenAI or Microsoft, and once more, Taylor stated no.
— Jordan Novet
Altman takes the witness stand
CEO of OpenAI Sam Altman arrives on the courthouse on the day of the trial in Elon Musk’s lawsuit over OpenAI for-profit conversion at a federal courthouse in Oakland, California, U.S., Might 12, 2026.
Carlos Barria | Reuters
Altman is up on the witness stand, and his testimony is underway. He’s carrying a blue go well with with a tie, and he is answering query about his background. He stated he was “all the time ” in AI.
Taylor stepped down and exited the courtroom.
–Ashley Capoot
Taylor’s cross-examination is underway
A lawyer for OpenAI, William Savitt, simply completed asking Taylor questions. A lawyer for Musk is now kicking off Taylor’s cross-examination.
Savitt requested Taylor about Musk’s bid to amass OpenAI final 12 months, which Taylor stated the board unanimously voted to reject. Taylor additionally answered questions in regards to the OpenAI nonprofit’s work, together with its work in life sciences and AI resilience.
Taylor stated the nonprofit has not accelerated its charitable exercise due to Musk’s lawsuit.
“Completely not,” Taylor testified.
–Ashley Capoot
Taylor takes the stand, Altman watches from the courtroom
Bret Taylor, Chairman of the board of administrators of OpenAI, arrives on the courthouse on the day of the trial in Elon Musk’s lawsuit over OpenAI for-profit conversion at a federal courthouse in Oakland, California, U.S., Might 12, 2026.
Manuel Orbegozo | Reuters
Taylor is again on the witness stand, and proceedings are underway. He’s carrying a charcoal gray go well with with a gray tie.
Altman simply walked into the courtroom, and he took a seat close to his legal professionals. He’s resting his elbow on the arm of the wood bench, and he seems relaxed.
–Ashley Capoot
After Altman, OpenAI chief futurist, and security chair anticipated to testify
Joshua Achiam (R), Chief Futurist at OpenAI, arrives on the federal courthouse throughout proceedings within the trial over Elon Musk’s lawsuit in opposition to OpenAI in Oakland, California, on Might 12, 2026.
Josh Edelson | AFP | Getty Pictures
Whereas all eyes are on Altman, the corporate’s authorized group has further inside members on their witness listing who’re anticipated to take the stand on Wednesday.
In keeping with filings, OpenAI’s remaining witnesses embody Zico Kolter, an OpenAI Basis board member and chair of the Security and Safety Committee on the ChatGPT maker, and Chief Futurist Josh Achiam.
Altman was referred to as as a witness by OpenAI quite than Musk’s authorized group. Meaning Musk’s authorized group can cross-examine him and problem his credibility or data. But it surely additionally limits the scope of what Musk’s legal professionals can ask Altman to solely points coated in his direct examination by protection counsel.
— Lora Kolodny
Legal professionals, reporters and members of the general public are heading into the courtroom
Outdoors the federal court docket in Oakland, California, US, on Monday, Might 12, 2026.
Ashley Capoot | CNBC
I simply took my seat contained in the courtroom. There is a lengthy line of reporters and members of the general public which can be nonetheless making their means via the doorways.
Legal professionals for Musk and OpenAI are additionally submitting in. There is no signal of any witnesses but, together with Taylor or Altman.
–Ashley Capoot
Altman faces authorities inquiry over potential conflicts of curiosity
CEO of OpenAI Sam Altman walks on the courthouse throughout a recess of the trial in Elon Musk’s lawsuit over OpenAI for-profit conversion at a federal courthouse in Oakland, California, U.S., Might 4, 2026.
Manuel Orbegozo | Reuters
The Home Oversight and Authorities Reform Committee despatched Altman a letter on Friday searching for details about how OpenAI identifies and prevents conflicts of curiosity.
Within the letter, Committee Chair Rep. James Comer stated that Brockman holds stakes in two startups that Altman backs and holds a proportion of his household fund, which was disclosed “in litigation in regards to the unique nonprofit standing of OpenAI.” Comer additionally talked about OpenAI’s proposed funding in Helion, a nuclear fusion firm that Altman personally invested in.
“These particulars additional elevate considerations to the Committee about potential conflicts of curiosity arising out of your use of OpenAI to probably bolster the worth of different firms and startups which you maintain a monetary stake in,” the letter stated.
Comer is requesting details about OpenAI’s audit committee, which handles conflicts of curiosity, and all related insurance policies, previous and current, for administrators and officers at OpenAI.
Comer stated he desires solutions by no later than Might 22.
–Ashley Capoot
This is what Bret Taylor has stated up to now
Bret Taylor, co-founder and chief government officer of Sierra Worldwide Group Inc., arrives for the morning session on the Allen & Co. Media and Expertise Convention in Solar Valley, Idaho, US, on Wednesday, July 9, 2025.
David Paul Morris | Bloomberg | Getty Pictures
Taylor took the stand towards the top of Monday’s proceedings. He’s the chairman of OpenAI’s board, a job he agreed to tackle throughout the chaotic interval the place Altman was briefly ousted as CEO in 2023. Taylor stated it was a tough few days for the corporate.
“I’d describe it as dire,” Taylor testified. “It felt just like the group would possibly collapse if a decision was not reached.”
Taylor additionally spoke about OpenAI’s company construction earlier than and after its recapitalization final 12 months.
He stated the brand new setup is much more simple for workers and traders, however that OpenAI’s nonprofit remains to be in management. Taylor added that some traders, together with SoftBank and Thrive Capital, made their investments conditional on transferring to the brand new construction.
Taylor spoke very quick on Monday, and Decide Gonzalez Rogers repeatedly requested him to decelerate to make sure the court docket reporter might transcribe the whole lot he stated.
–Ashley Capoot
Takeaways from Microsoft CEO Satya Nadella’s testimony
Microsoft CEO Satya Nadella is questioned by a Microsoft lawyer throughout Elon Musk’s lawsuit trial over OpenAI’s for-profit conversion at a federal courthouse in Oakland, California, U.S., Might 11, 2026 in a courtroom sketch.
Vicki Behringer | Reuters
Microsoft CEO Satya Nadella took the stand and testified on Monday.
The corporate has been one in every of OpenAI’s main backers since 2019, investing greater than $13 billion into the startup. Musk named Microsoft as a defendant within the lawsuit, as he alleges the corporate aided and abetted OpenAI’s purported breach of charitable belief.
Nadella stated Musk by no means contacted him with considerations that Microsoft’s investments in OpenAI have been in violation of any particular phrases or commitments.
He stated on the stand that he was “very proud” that Microsoft took the chance to spend money on OpenAI when “nobody else was prepared” to guess on the fledgling lab.
Nadella additionally spoke about his recollection of the interval the place Altman was eliminated and reinstated as CEO of OpenAI in late 2023. He stated his precedence was sustaining continuity for Microsoft, and that he tried to hunt out extra details about what occurred, which was largely unavailable.
“It was form of beginner metropolis, so far as I am involved,” Nadella testified.
–Ashley Capoot
