elon Musk is seeking damages ranging from $79 billion to $134 billion from openai and Microsoft, alleging fraud related to the companies’ shift away from a purely nonprofit structure. The lawsuit, filed in January 2026, centers on Musk’s claim that OpenAI abandoned its original mission to prioritize safety and open-source advancement in favor of commercial interests.
A federal judge rejected a final attempt by OpenAI and microsoft to dismiss the case, paving the way for a jury trial scheduled for late April in Oakland, California. Musk alleges he was defrauded of the $38 million in seed funding he provided to OpenAI in 2015, and is entitled to a portion of the company’s current valuation.
Background: Musk’s Involvement and OpenAI’s Restructuring
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Musk was a co-founder of OpenAI,initially established as a nonprofit research company in December 2015 . He stepped down from the board in 2018, citing potential conflicts of interest with his work at tesla, especially regarding autonomous driving technology. He later founded xAI, his own artificial intelligence company, in 2023.
In 2024, OpenAI underwent a significant restructuring, creating a capped-profit company overseen by a nonprofit parent association. This transition involved Microsoft taking a 27% stake in the for-profit entity, valued at approximately $500 billion . Musk contends this restructuring violated the original agreement among the founders.
The Core of the Lawsuit and Damage Claims
Musk’s legal team, led by Steven Molo, argues that OpenAI’s pursuit of profit, in partnership with Microsoft, constitutes a breach of fiduciary duty. They assert that musk’s initial contributions, including financial investment and technical/business guidance, were instrumental in OpenAI’s success and warrant compensation.
According to a court filing, financial economist C.Paul Wazzan calculated the potential damages. Wazzan estimates that illicit profits amount to between $65.5 billion and $109.43 billion for OpenAI and between $13.3 billion and $25.06 billion for Microsoft. Musk is also seeking punitive damages.
Key Arguments from Musk’s Filing
- Breach of Fiduciary Duty: openai prioritized commercial gain over its original nonprofit mission.
- misappropriation of Contributions: musk’s initial investment and expertise were essential to openai’s development.
- Unjust Enrichment: OpenAI and Microsoft have unfairly benefited from Musk’s contributions.
Responses from OpenAI and Microsoft
OpenAI has dismissed the lawsuit as “baseless” and part of a “pattern of harassment” by musk. In a statement, openai said it intends to “prove this at trial” and characterized the lawsuit as an attempt to impede competition .
Microsoft declined to comment on the ongoing litigation.
Looking Ahead
The trial is expected to be closely watched by the tech industry, as it raises fundamental questions about the governance of AI companies and the balance between innovation and ethical considerations. openai has warned investors to anticipate bold claims from Musk during the proceedings. The outcome of the case could have significant implications for the future of AI development and the relationship between for-profit and nonprofit entities in the tech sector.