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OpenAI CEO Sam Altman (R) and Greg Brockman, OpenAI president and co-founder arrive at the federal courthouse in Oakland, California on April 30, 2026. (Photo: Josh Edelson / AFP via Getty Images)

OpenAI's President Greg Brockman wanted a billion dollars, now his stake is worth $30 billion

A dispatch from the Musk v. Altman trial, as unflattering details from Brockman’s personal journal emerge.

In an Oakland, California courtroom, a drama is unfolding that could determine the future of who wins the AI race. This is week two of Musk v. Altman, a civil trial in the Northern District of California Court where a jury is watching altruism clash with capitalism, while some of the most wealthy and powerful people in the world are airing their long-simmering beef. 

Elon Musk’s lawsuit against OpenAI CEO Sam Altman all comes down to the AI giant’s strange, convoluted origin story. In 2015, a group of founders and AI researchers — including Musk and Altman — set out to build a non-profit organization that would invent, then bestow upon the world, a safe, benevolent, super-intelligent AI for the betterment of mankind.

Ten years later, OpenAI’s ChatGPT has proven to be one of the most successful product launches of all time, and the newly restructured now for-profit public benefit corporation is on the cusp of pulling off one of the largest IPOs in history.

In the lawsuit, Musk claims Altman and co-founder Greg Brockman (now OpenAI president) engaged in a “long con,” using Musk’s clout and expertise to recruit and build the company, only to betray the vision of the company and his one-time friend by “cashing in” with Microsoft’s $10 billion investment in 2023. Microsoft is also named as a co-defendant in the case.

Last week, Musk took the witness stand for several days of testimony, and said “you can’t just steal a charity.” Musk made the case that he was instrumental in the creation of OpenAI, and shared his expertise as a founder to help attract top AI talent, and to acquire the necessary computing power to build a powerful new AI system. From the stand, Musk called himself “a fool” for donating $38 million in seed capital to the startup. 

OpenAI president Greg Brockman and wife, Anna Brockman, leave the Ronald V. Dellums US Courthouse in Oakland, California, on April 29, 2026
(Photo: Karl Mondon / AFP via Getty Images)

On Monday morning, I was in the courtroom as Brockman entered holding his wife Anna's hand, and then proceeded to the stand to face a grilling by Musk's attorney Steven Molo.

Right off the bat, Molo confirmed that since its founding, Brockman put exactly zero dollars into the company, but now holds a stake worth roughly $30 billion, which Brockman confirmed for the first time.

Molo showed a 2015 email from Brockman to then Yahoo CEO Marissa Mayer soliciting a donation for the fledgling startup (then known as YC Research), in which he dropped the names of several high profile donors, such as Musk, LinkedIn co-founder Reid Hoffman, and Palantir co-founder Peter Thiel. In the email, Brockman said Altman was donating $10 million and that he himself would donate $100,000. 

Email from Brockman to Mayer
(US District Court, Northern District of California)

Molo then asked Brockman if he had ever followed through on making that donation, to which Brockman admitted that he had not. “You lied?,” asked Molo — a characterization that Brockman disputed . 

Molo then walked through a number of examples of how Musk lent his power to help clear obstacles for the startup, including helping sign off on work visas for new hires, and making “closing calls” to help woo top talent to come aboard. Brockman agreed that they asked for Musk’s help and got it. 

The challenge of securing the huge amounts of computing power they needed to build their new technology created a real problem for the startup, and again Musk helped clear this obstacle. In a June 2017 email to Elon Musk, Brockman thanked him for reaching out to Microsoft CEO Satya Nadella for access to 10,000 Nvidia GPUs so OpenAI could use its AI to compete against human players in an eSports competition (which it ended up winning).

Molo highlighted Musk’s access, asking Brockman if he would have been able to just call up Nadella at the time. “Would he take your call?,” asked Molo. He then showed a photo from an Elon Musk tweet of Nvidia’s CEO, Jensen Huang, clad in his signature leather jacket delivering the company's first Nvidia DGX1 to OpenAI's office. 

“Would Jensen be able to pick you out of a crowd of two at the time?” deadpanned Molo. 

Jensen Huang delivers first DGX1 to OpenAI
NVIDIA CEO Jensen Huang delivers the first DGX1 to OpenAI(Photo originally posted by Elon Musk on X)

Molo went on to highlight some potential conflicts of interest relating to Brockman's investments. OpenAI cut deals with Cerebras and CoreWeave, which Brockman benefited from financially. Molo asked if he was involved in those decisions as President of OpenAI, to which Brockman responded that he was involved in those discussions, and believed that he had disclosed his stakes to Shivon Zilis, and OpenAI board member (and mother to four of Musk’s children). Brockman acknowledged that he did not offer any proof that he ever disclosed the stakes to Musk.

A fork in the road

In one line of questioning, Molo sought to show the jury that Brockman’s desire to be a billionaire outweighed his desire to serve humanity. Some cringeworthy moments ensued in the courtroom as Molo read some passages back to Brockman from his personal journal. 

In an August 21, 2018 journal entry, Brockman contemplated what he described in his testimony as “a fork in the road.” Should they let Musk take charge and cede total control of OpenAI to him? Or should they move ahead with plans to raise capital as a for-profit?

“This is the only chance we have to get out from Elon. Is he the "glorious leader" that I would pick? We truly have a chance to make this happen. Financially, what will take me to $1B?,” wrote Brockman. 

Molo pressed Brockman — if he was so dedicated to the altruism of serving humanity, why hasn't he donated the extra $29 billion of his wealth to OpenIA’s non-profit arm after achieving that first billion that he pined for? Brockman waffled a bit before saying that he asked Altman how he should go about donating his money, but that he said he would get back to him. 

During this line of questioning, I glanced over to Altman to see his reaction — he was pulling his blazer up over part of his face.

“Then it was a lie”

In addition to the internal chain of thought related to OpenAI’s corporate structure, as well as his personal financial goals, Brockman also kept contemporaneous notes of meetings and calls with his partners. 

Some of the descriptions in these entries appear to clearly describe the behavior Musk is accusing the founders of.  

In a summary of a breakfast meeting on Nov. 6, 2017 with co-founder Ilya Sutskever, Brockman wrote: 

“cannot say that we are committed to the non-profit. don't wanna say that we're committed. if three months later we're doing b corp then it was a lie”

Brockman's prophetic entry continued:  

“can't see us turning this into a for-profit without a very nasty fight. i'm just thinking about the office and we're in the office. And his story will correctly be that we weren't honest with him in the end about still wanting to do the for profit just without him.”

Judge Yvonne Gonzalez Rogers will make the ultimate decision in the case, as the jury will only focus on the liability phase of the trial, and its verdict will only be advisory. The case is expected to conclude before the end of May. 

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