Musk vs Altman Trial Begins: $134B Lawsuit Over OpenAI's Future

Key Takeaways

• Musk seeks $134 billion in damages and wants Altman and Brockman removed from OpenAI leadership
• Microsoft CEO Satya Nadella will testify about the company's $1 billion investment and 27% stake in OpenAI
• Former OpenAI chief scientist Ilya Sutskever, who briefly ousted Altman in 2023, is expected to reveal internal tensions

The biggest legal battle in Silicon Valley history starts Monday. Elon Musk is suing Sam Altman, Greg Brockman, and OpenAI for $134 billion, claiming they abandoned the company's original nonprofit mission to chase profits with Microsoft.

Jury selection begins in federal court for a trial that could reshape the $852 billion AI company. Musk wants more than money. He's asking the court to remove Altman and Brockman from their leadership roles entirely.

OpenAI has called the lawsuit "baseless" and driven by jealousy. The company is preparing for an IPO and has no intention of returning to its nonprofit roots.

What Musk Is Claiming

Musk cofounded OpenAI in 2015 with a clear vision: build artificial general intelligence for humanity's benefit, not corporate shareholders. He provided $44 million in seed funding between 2015 and 2017 to keep the lab open and nonprofit.

His complaint argues that Altman and Brockman executed a "long con." They took OpenAI's nonprofit research, locked it behind proprietary walls, and sold a 27% stake to Microsoft for billions. The 2019 restructuring turned a charitable organization into a for-profit subsidiary.

“The perfidy and deceit are of Shakespearean proportions... Altman has been engaged in a 'long con.”

— Musk's Legal Team, Opening Statements

Musk has been vocal outside the courtroom too. On X, he warned followers to "not let your loved ones use ChatGPT" and teased that "discovery and testimony will blow your mind."

The Key Witnesses

This trial features a who's-who of tech industry power. Here's who will testify and why they matter.

Elon Musk (Plaintiff)

The CEO of xAI, Tesla, and SpaceX will present his case as the wronged cofounder. Musk runs his own AI company now, which OpenAI will likely use to question his motives. Expect fireworks when he takes the stand.

Sam Altman (Defendant)

OpenAI's CEO has been preparing for this moment. Months ago, he posted on X: "Really excited to get Elon under oath in a few months, Christmas in April!" Altman will argue that OpenAI's evolution was necessary to compete with well-funded rivals and that Musk knew about the plans.

Greg Brockman (Defendant)

OpenAI's president and cofounder is named alongside Altman. Musk wants both men removed from leadership. Brockman's testimony will focus on the technical and strategic decisions behind the for-profit shift.

Satya Nadella (Witness)

Microsoft's CEO will testify about the company's deep financial ties to OpenAI. Microsoft backed the 2019 restructuring with a $1 billion investment and now holds a 27% stake. The company gets five hours to present its case. Nadella's testimony could reveal how much Microsoft knew about OpenAI's nonprofit origins and whether that influenced deal terms.

Ilya Sutskever (Witness)

Perhaps the most anticipated testimony comes from OpenAI's former chief scientist. Sutskever famously helped oust Altman in November 2023, only to see the decision reversed days later. He left to start Safe Superintelligence, an AI safety startup. His testimony could expose internal tensions about safety, commercialization, and mission drift.

Shivon Zilis (Witness)

A former OpenAI board member and current Neuralink executive, Zilis brings a unique perspective. She's also the mother of four of Musk's children. Her testimony could address board discussions about the nonprofit's direction.

Jared Birchall (Witness)

Musk's wealth manager and "fixer" runs the family office. His testimony could reveal communications between Musk and OpenAI leadership during the critical period when the company shifted structure.

What's Really at Stake

This trial isn't just about money. It's about whether a nonprofit can transform into a for-profit entity worth $852 billion and keep the assets it built under charitable status.

If Musk wins, OpenAI could be forced to restructure again. The company might need to spin off its for-profit arm or return value to the nonprofit. That would complicate its IPO plans and relationship with Microsoft.

If OpenAI wins, it validates the hybrid nonprofit-to-for-profit model. Other AI labs watching this case might follow the same path.

“We are about to witness the landing of the Hindenburg on the deck of the Titanic.”

— Anonymous Litigation Expert, on the trial's potential impact

The Community Reaction

Online communities are split. On Reddit's r/Singularity, users debate whether "Open" in OpenAI ever meant anything. Some see Musk as a hypocrite running his own closed AI company. Others view him as the last defender of AI safety principles.

The trial is expected to run several weeks. Both sides have promised explosive revelations from internal communications and board discussions.

Frequently Asked Questions

Why is Elon Musk suing OpenAI?

Musk alleges that Sam Altman and Greg Brockman betrayed OpenAI's original nonprofit mission by converting it to a for-profit company with Microsoft. He seeks $134 billion in damages and wants both leaders removed.

How much is OpenAI worth now?

OpenAI is valued at approximately $852 billion as of April 2026. The company is preparing for an IPO.

What is Microsoft's stake in OpenAI?

Microsoft owns 27% of OpenAI's for-profit entity after investing $1 billion in the 2019 restructuring. CEO Satya Nadella will testify about the company's financial and strategic relationship.

Who is Ilya Sutskever and why does his testimony matter?

Sutskever was OpenAI's chief scientist and helped briefly oust Altman in November 2023. He now runs Safe Superintelligence. His testimony could reveal internal conflicts about safety and commercialization.

What happens if Musk wins the lawsuit?

OpenAI could be forced to restructure, potentially spinning off its for-profit arm or returning value to the nonprofit. This would complicate its IPO plans and Microsoft partnership.

Source: Tech-Economic Times / ET

Updated Damages Strategy and Trial Specifics

The new article reveals that Musk has abandoned his bid for personal damages, now seeking an unspecified amount for OpenAI's charitable arm instead of the original $134 billion. It also provides specific details such as Musk's $38 million investment and identifies the presiding judge as Yvonne Gonzalez Rogers in Oakland.