Jury Finds Musk Lawsuit Against OpenAI and Microsoft Untimely

A federal jury in Oakland unanimously ruled that Elon Musk failed to file his lawsuit against OpenAI and Microsoft within the required statute of limitations, finding the defendants not liable on all claims [1]. The verdict, delivered after less than two hours of deliberation, concludes a three-week trial that examined allegations that OpenAI’s shift toward a for-profit model betrayed its original charitable mission [1].

Key takeaways

• The nine-person jury found OpenAI, Sam Altman, and Greg Brockman not liable for breach of charitable trust and unjust enrichment [1].
• Microsoft was cleared of claims that it aided and abetted a breach of OpenAI’s charitable trust [1].
• Jurors were persuaded by the defense’s argument that a 2020 tweet from Musk, in which he stated OpenAI seemed "captured by Microsoft," proved he was aware of his grievances years before filing suit [1].
• The jury’s verdict is advisory, meaning U.S. District Judge Yvonne Gonzalez Rogers will make the final determination on liability [1].
• Microsoft recently amended its partnership with OpenAI to make its intellectual property license non-exclusive and allow OpenAI to use other cloud providers [1].

The legal battle over OpenAI’s mission

Elon Musk, who co-founded OpenAI in 2015 and contributed approximately $38 million to the nonprofit, filed his lawsuit in 2024 [1]. He alleged that OpenAI leaders Sam Altman and Greg Brockman abandoned the organization’s commitment to safe, open-source AI development in favor of a for-profit structure [1]. Musk’s legal team sought to have Altman and Brockman removed from their roles and requested the return of what they termed "wrongful gains" from the nonprofit, with a damages expert estimating the value of those gains as high as $134 billion [1].

Microsoft, which has invested over $13 billion into OpenAI since 2019, became a central target of the litigation [1]. During the trial, evidence included internal emails from Microsoft executives, such as a 2018 message from CTO Kevin Scott questioning whether OpenAI donors understood the company’s commercial trajectory [1]. Microsoft CEO Satya Nadella testified that the investment was a "one-way door" taken to secure access to core intellectual property, noting that the partnership carried significant financial risk [2]. Nadella also confirmed that Microsoft projected a $92 billion return on its investment in a January 2023 memo, though he emphasized that the outcome was never guaranteed [2].

Why it matters

The trial provided a rare look into the internal dynamics of the Microsoft-OpenAI partnership, including the influence Microsoft exerted during the 2023 leadership crisis at OpenAI [1]. While the jury’s verdict favors the defendants, the legal proceedings are not yet fully resolved, as the judge must still issue a final ruling and the remedies phase of the trial remains pending [1]. Musk’s legal counsel has indicated that they are preserving the right to appeal the jury’s decision [1]. Meanwhile, the broader AI industry continues to adjust to the shifting partnership, which now includes OpenAI’s ability to utilize cloud providers beyond Microsoft [1].