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Elon Musk Lost Major Legal Battle Against OpenAI, Sam Altman

Elon Musk Lost Major Legal Battle Against OpenAI, Sam Altman/ Newslooks/ WASHINGTON/ J. Mansour/ Morning Edition/ A federal court dismissed Elon Musk’s lawsuit against OpenAI, ruling he filed the claims too late. Musk accused OpenAI leaders Sam Altman and Greg Brockman of abandoning the company’s nonprofit mission. The high-profile trial highlighted the growing rivalry between Musk’s xAI and the ChatGPT creator.

Marc Toberoff, attorney for Elon Musk, speaks to reporters outside the U.S. District Court, Monday, May 18, 2026, in Oakland, Calif. (AP Photo/Nathan Weyland)
Sam Altman, right, and OpenAI president Greg Brockman, center, arrive at the U.S. District Court in Oakland, Calif., Thursday, April 30, 2026. (AP Photo/Godofredo A. Vásquez)

Musk OpenAI Lawsuit Quick Looks

  • A federal jury ruled Musk filed his lawsuit too late
  • Judge Yvonne Gonzalez Rogers accepted the jury’s decision
  • Musk plans to appeal the verdict
  • OpenAI argued the case was motivated by business competition
  • Sam Altman denied promises to remain nonprofit forever
  • Musk invested $38 million in OpenAI’s early years
  • The trial revealed tensions between Musk and Altman
  • OpenAI is now valued at approximately $852 billion
  • Microsoft supported OpenAI throughout the case
  • Musk accused OpenAI leaders of “stealing a charity”
Steven F. Molo, attorney for Elon Musk, second from left, speaks to reporters outside the U.S. District Court, Monday, May 18, 2026, in Oakland, Calif. (AP Photo/Nathan Weyland)

Deep Look

Court Dismisses Elon Musk’s Lawsuit Against OpenAI

A federal court on Monday dismissed Elon Musk’s claims against OpenAI and several of its top executives, ending a closely watched legal battle over the future and origins of one of the world’s most influential artificial intelligence companies.

The nine-person jury concluded that Musk waited too long to file the lawsuit and missed the legal deadline required to pursue the claims.

After a three-week trial in Oakland, California, jurors deliberated for less than two hours before reaching their decision. Judge Yvonne Gonzalez Rogers later accepted the advisory jury’s findings and formally dismissed the case.

The ruling represents a major legal victory for OpenAI and CEO Sam Altman amid growing competition within the artificial intelligence industry.

Musk Vows to Appeal Decision

Shortly after the verdict, Musk announced plans to appeal.

The billionaire entrepreneur argued that the jury never evaluated the substance of his accusations and instead ruled solely on procedural timing issues.

“There is no question to anyone following the case in detail that Altman & Brockman did in fact enrich themselves by stealing a charity. The only question is WHEN they did it!” Musk wrote on his social media platform X.

Musk’s attorney, Steven Molo, insisted the legal fight was far from over.

He compared the courtroom setback to major historical military losses that ultimately did not determine broader outcomes, signaling Musk intends to continue challenging OpenAI in court.

Musk Accused OpenAI of Abandoning Nonprofit Mission

At the center of the lawsuit was Musk’s claim that OpenAI abandoned its original nonprofit mission dedicated to developing artificial intelligence for the benefit of humanity.

Musk helped co-found OpenAI in 2015 and invested approximately $38 million during its early years.

He alleged that Sam Altman and OpenAI president Greg Brockman secretly transformed the organization into a profit-driven enterprise while enriching themselves personally.

Musk’s lawsuit accused OpenAI leaders of “breach of charitable trust” and sought damages directed toward the company’s nonprofit arm.

He also sought Altman’s removal from OpenAI’s board.

During testimony, Musk repeatedly described the dispute in simple moral terms.

“I think they’re going to try to make this lawsuit … very complicated, but it’s actually very simple,” Musk told jurors. “Which is that it’s not OK to steal a charity.”

OpenAI Says Lawsuit Was Driven by Competition

OpenAI’s legal team strongly rejected Musk’s allegations and argued the lawsuit was motivated primarily by business rivalry.

The company claimed there was never an agreement requiring OpenAI to remain a nonprofit organization permanently.

Executives argued Musk fully understood OpenAI’s evolving business structure and later became angry after losing influence within the company.

OpenAI attorneys also accused Musk of attempting to damage the company’s rapid growth while boosting his own artificial intelligence company, xAI, launched in 2023.

Outside the courthouse, OpenAI lawyer William Savitt described the lawsuit as an “after-the-fact contrivance” designed to sabotage a competitor.

Microsoft, a major OpenAI investor and co-defendant in the lawsuit, also welcomed the court’s decision.

The company said it remains “committed to our work with OpenAI to advance and scale AI for people and organizations around the world.”

Trial Revealed Tensions Between Musk and Altman

The trial offered rare public insight into the breakdown of the once-close relationship between Musk and Altman.

Testimony showed both men initially competed for control of OpenAI during its early development.

Altman testified that he became increasingly concerned about Musk’s efforts to gain greater authority over the organization.

“Part of the reason we started OpenAI is we didn’t think AGI could be under the control of any one person, no matter how good their intents are,” Altman told jurors.

The trial also revisited the dramatic 2023 period when OpenAI’s board temporarily removed Altman as CEO before reinstating him just days later.

Former board members Helen Toner and Tasha McCauley testified that concerns existed regarding Altman’s truthfulness and leadership style.

OpenAI’s Massive Growth Fueled the Dispute

The legal battle unfolded against the backdrop of OpenAI’s extraordinary rise following the success of ChatGPT.

The company is now reportedly valued at approximately $852 billion and is considered a candidate for one of the largest public offerings in technology history.

Greg Brockman testified during the trial that his OpenAI stake alone is worth roughly $30 billion.

OpenAI’s explosive growth transformed what began as a research-focused nonprofit initiative into one of Silicon Valley’s most valuable companies.

That transformation became central to Musk’s accusations that the organization betrayed its founding mission.

Altman Describes Fallout as ‘Painful’

Near the end of his testimony, Altman reflected emotionally on his deteriorated relationship with Musk.

“I felt like he had abandoned us, not come through on his promises, put the company in a very difficult place, jeopardized the mission, didn’t really care about the things I thought he cared about,” Altman said.

“It’s been an extremely painful thing for me … to have someone that I respected so much not acknowledge that and continue to publicly attack us,” he added.

The comments highlighted how the legal dispute has evolved into a deeply personal feud between two of the most influential figures in modern technology.

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