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What Happened to Elon Musk's Lawsuit Against OpenAI?

Elon Musk filed a lawsuit against OpenAI and its leaders, Sam Altman and Greg Brockman, alleging they betrayed the company's founding non-profit mission by prioritizing profit. The case went to trial in April 2026, and on May 18, 2026, a federal jury unanimously ruled against Musk, finding that he waited too long to file his claims.

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Quick Answer

Elon Musk's lawsuit against OpenAI concluded on May 18, 2026, with a federal jury ruling against him. The jury found that Musk had exceeded the statute of limitations for filing his claims, which accused OpenAI of abandoning its original non-profit mission for profit. U.S. District Judge Yvonne Gonzalez Rogers accepted the advisory verdict and dismissed all of Musk's claims.

📊Key Facts

Musk's initial investment in OpenAI
$38 million - $44 million
Fox Business, Crypto Briefing, PBS
OpenAI's valuation (as of 2026 trial)
Over $85 billion
CBS News, Fox Business
Damages sought by Musk (approx.)
$150 billion
Fox Business, Decrypt
Date of jury verdict
May 18, 2026
Axios, Fox Business

📅Complete Timeline13 events

1
December 2015Critical

OpenAI Founded as Non-Profit

Elon Musk co-founds OpenAI with Sam Altman, Greg Brockman, and others, establishing it as a non-profit organization dedicated to developing AI for humanity's benefit.

2
2017Notable

Discussions on For-Profit Structure

Internal discussions begin within OpenAI about potentially transitioning to a for-profit model to secure substantial funding required for advanced AI development, with Musk reportedly participating.

3
February 2018Major

Musk Departs OpenAI Board

Elon Musk resigns from OpenAI's board, citing potential conflicts of interest with Tesla's AI efforts, though later reports suggest disagreements over control and direction.

4
2019Major

OpenAI Creates For-Profit Entity

OpenAI establishes a 'capped-profit' entity and subsequently secures significant investment from Microsoft, marking a shift in its operational structure.

5
February 29, 2024Critical

Musk Files First Lawsuit

Elon Musk files a lawsuit against OpenAI, Sam Altman, and Greg Brockman in San Francisco Superior Court, alleging breach of contract and betrayal of the company's founding mission.

6
March 11, 2024Major

OpenAI Responds Publicly

OpenAI publishes a detailed blog post, including emails, to counter Musk's claims, asserting that he supported the transition to a for-profit model and sought control.

7
June 12, 2024Major

Musk Withdraws First Lawsuit

Elon Musk abruptly moves to dismiss his initial lawsuit against OpenAI and its executives without providing a public reason for the withdrawal.

8
August 5, 2024Critical

Musk Files Second Lawsuit

Musk files a new, more extensive lawsuit against OpenAI, Altman, and Brockman in a Northern California federal court, reiterating claims of betrayal and adding new allegations.

9
November 2024Notable

Musk Seeks Preliminary Injunction

Musk files a motion for a preliminary injunction to prevent OpenAI from changing its non-profit to for-profit status, arguing it violates his contributions' terms.

10
February 2025Notable

Judge Expresses Skepticism

U.S. District Judge Yvonne Gonzalez Rogers indicates that Musk's claim of 'irreparable harm' regarding OpenAI's for-profit conversion might be a 'stretch'.

11
April 27, 2026Major

Trial Begins with Jury Selection

Jury selection commences for the federal trial in the U.S. District Court for the Northern District of California, setting the stage for the legal showdown.

12
April 28, 2026Critical

Elon Musk Testifies

Elon Musk takes the stand, testifying that he was a 'fool' for funding OpenAI and felt betrayed by its shift towards profit, seeking $150 billion in damages.

13
May 18, 2026Critical

Jury Rules Against Musk

A federal jury unanimously rules against Elon Musk, finding that he waited too long to file his lawsuit, and Judge Yvonne Gonzalez Rogers dismisses all claims.

🔍Deep Dive Analysis

Elon Musk's legal battle against OpenAI stemmed from his accusation that the artificial intelligence company, which he co-founded, deviated from its original mission to develop AI for the benefit of humanity as a non-profit entity. Musk alleged that OpenAI, under the leadership of CEO Sam Altman and President Greg Brockman, transformed into a profit-driven enterprise, particularly through its partnership with Microsoft.

The lawsuit, initially filed in February 2024, claimed a breach of contract and fiduciary duty, arguing that a 'founding agreement' mandated OpenAI to remain open-source and non-profit. OpenAI vehemently denied these allegations, countering with a public blog post in March 2024 that included emails suggesting Musk was aware of and even supported discussions about a for-profit structure to secure necessary funding for ambitious AI development. These communications also indicated Musk's proposals for a closer integration with Tesla or a merger to leverage its financial resources.

A key turning point occurred in June 2024 when Musk abruptly withdrew his initial lawsuit without explanation. However, he refiled a second, more forceful lawsuit in a Northern California federal court in August 2024, renewing his claims and adding new allegations, including federal racketeering laws and wire fraud.

The case proceeded to a federal trial in Oakland, California, with jury selection beginning on April 27, 2026. During the trial, which lasted several weeks, Elon Musk testified, stating he felt 'betrayed' and was a 'fool' for funding OpenAI based on assurances it would remain a non-profit. OpenAI's defense focused on the absence of a perpetual non-profit agreement and argued that Musk's lawsuit was motivated by jealousy over OpenAI's success and his failure to gain control of the company, especially after launching his own rival AI firm, xAI.

The trial culminated on May 18, 2026, when a federal jury delivered a unanimous verdict against Elon Musk. The jury found that Musk had waited too long to file his lawsuit, exceeding the statute of limitations. U.S. District Judge Yvonne Gonzalez Rogers accepted this advisory verdict, dismissing all of Musk's claims, including those against OpenAI, Sam Altman, Greg Brockman, and Microsoft. While Musk's lawyer indicated a potential appeal, the judge suggested it would be an uphill battle given the factual nature of the jury's finding.

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People Also Ask

What was Elon Musk's main accusation against OpenAI?
Elon Musk accused OpenAI of abandoning its original non-profit mission to develop artificial intelligence for the benefit of humanity. He claimed the company, under Sam Altman, prioritized profit and became a 'de-facto subsidiary' of Microsoft, breaching a 'founding agreement'.
When did Elon Musk file the lawsuit against OpenAI?
Elon Musk initially filed a lawsuit on February 29, 2024. After withdrawing it in June 2024, he filed a second, more comprehensive lawsuit on August 5, 2024, in a federal court.
What was the outcome of the lawsuit?
On May 18, 2026, a federal jury unanimously ruled against Elon Musk, finding that he waited too long to file his lawsuit. U.S. District Judge Yvonne Gonzalez Rogers accepted the verdict and dismissed all of Musk's claims.
What was OpenAI's defense in the lawsuit?
OpenAI's defense argued there was no formal 'founding agreement' to remain a non-profit indefinitely. They presented evidence, including emails, suggesting Musk was aware of and supported the transition to a for-profit model to secure necessary funding.
How much money did Elon Musk seek in damages?
Elon Musk sought billions in damages, with some reports indicating he was seeking up to $150 billion. He stated that any monetary damages awarded would be directed to OpenAI's charitable arm.