Judge Sets April 2026 Trial for Musk's Lawsuit Against OpenAI, Microsoft
A judge sets an April 2026 trial for Elon Musk's lawsuit against OpenAI and Microsoft, focusing on OpenAI's shift from nonprofit to for-profit.

OpenAI and Microsoft Face Trial Over Musk's Lawsuit
A federal judge in Oakland, California, has rejected OpenAI and Microsoft's motions to dismiss Elon Musk's lawsuit, setting the stage for a jury trial on April 27, 2026. The trial is expected to last up to four weeks, concluding on May 22. This decision allows Musk to pursue claims of fraud, breach of contract, and unjust enrichment against OpenAI and Microsoft. The lawsuit centers on OpenAI's transition from a nonprofit to a for-profit entity, heavily backed by Microsoft.
The Core Dispute: Nonprofit to For-Profit Transformation
Elon Musk, co-founder of OpenAI, alleges that the organization deviated from its original mission as an open-source nonprofit. Musk claims his $38 million donation was contingent on OpenAI maintaining its nonprofit status, as outlined in its initial charter. Judge Yvonne Gonzalez Rogers found sufficient factual disputes for a jury to decide, allowing Musk's claims to proceed.
- Fraud and Breach of Contract: Musk argues that OpenAI's shift violated the conditions of his donation.
- Unjust Enrichment: This claim was dismissed against Microsoft, but fraud and aiding breach allegations remain.
OpenAI has dismissed the lawsuit as "baseless," while Microsoft has not issued a separate statement.
Historical Context: A Fractured Partnership
OpenAI was launched in 2015 with Musk's $38 million contribution. By 2018, Musk resigned from the board due to conflicts with Tesla's AI work. OpenAI's pivot to a "capped-profit" structure in 2019 attracted over $13 billion from Microsoft, funding advancements like GPT-4. Musk's rival company, xAI, was launched in 2023, and he sued OpenAI in 2024.
Competitor Landscape: AI Rivalry Intensifies
| Company | Key Models/Products | Funding/Valuation | Strategic Edge |
|---|---|---|---|
| OpenAI | GPT-4o, ChatGPT | $13B+ from Microsoft; $157B valuation (2024) | Enterprise integrations via Microsoft |
| xAI (Musk) | Grok-3, Grok-2 | $6B raised (2024) | "Truth-seeking" focus |
| Anthropic | Claude 3.5 Sonnet | $8B from Amazon/Google | Safety-first ethos |
| Google DeepMind | Gemini 2.0 | Backed by Alphabet | Multimodal leadership |
Strategic Timing Amid AI Boom
The ruling comes as global AI spending reached $200 billion in 2025. Musk's persistence in the lawsuit aligns with xAI's growth, challenging OpenAI's market dominance. Critics argue OpenAI's for-profit shift prioritizes profits over safety, a concern echoed since its founding.
Broader Implications for AI Governance
The trial could redefine nonprofit transitions in tech, impacting donor rights. For Microsoft, involvement risks reputational damage amid regulatory scrutiny. A Musk victory could bolster xAI's position as a "pure" AI player.
This case highlights AI's governance challenges: as valuations soar, will profit motives compromise safety? The jury's decision may have far-reaching effects beyond Silicon Valley.



