Microsoft Chief Executive Satya Nadella is scheduled to testify before a federal jury in Oakland on Monday as part of Elon Musk’s lawsuit against OpenAI. The case revolves around a series of internal Microsoft emails that Musk’s legal team claims illustrate how the tech giant’s 2019 investment facilitated OpenAI’s transition from a nonprofit research lab to a for-profit AI powerhouse. Musk alleges that OpenAI has strayed from its original charitable mission and misappropriated the $38 million he contributed at its founding to create an enterprise now valued at over $850 billion. He is seeking a court order to compel OpenAI to revert to nonprofit status, a move that could significantly alter the competitive landscape, which includes rivals like Anthropic, Google, and China’s Deepseek.
In response, OpenAI contends that Musk left the organization after failing to secure a controlling stake and is now competing against it through his own venture, xAI. Nadella’s testimony will precede that of OpenAI Chief Executive Sam Altman, who is expected to be questioned later in the week. The trial has already revealed internal tensions among Silicon Valley engineers, investors, and executives, and it is progressing toward a verdict from an advisory jury by the week of May 18. Judge Yvonne Gonzalez Rogers has indicated that she will consider the jury’s recommendation when making a final ruling on liability and potential remedies.
Musk’s lawyers will argue that Microsoft’s 2019 $1 billion investment—part of a total of $13 billion that now represents a stake worth approximately $228 billion—was made with full awareness of OpenAI’s shift toward a profit-driven model. They will reference a January 2018 email in which Nadella expressed uncertainty about the specific research OpenAI was undertaking but acknowledged Musk’s belief that the organization was on the verge of a significant breakthrough in artificial general intelligence. At that time, Microsoft CTO Kevin Scott voiced concerns that OpenAI might “storm off to Amazon” if the partnership did not meet expectations. The emails also indicate discussions about a discounted Azure cloud-computing arrangement for OpenAI, suggesting that Microsoft’s support was contingent on the potential for commercial gain.
In the following months, a financially struggling OpenAI established a for-profit subsidiary to attract external capital, setting the stage for Microsoft’s subsequent investment. Testimony from OpenAI co-founder Greg Brockman, whose stake is valued at around $30 billion, further fueled the proceedings. Musk’s lawyers highlighted Brockman’s 2017 diary entries, which referenced “making money for us,” as evidence of a profit-oriented mindset. Additionally, Brockman testified that Musk had threatened him in 2017 after Musk’s request for absolute control of OpenAI was denied.
The outcome of this case could have significant implications for OpenAI’s planned initial public offering and the broader AI sector, where competition for computing resources and talent is intensifying. On Wednesday, Musk announced a partnership with Anthropic, allowing the rival firm to utilize computing capacity at SpaceX’s largest data center, a development that highlights the shifting alliances within the industry. As the trial approaches its conclusion, stakeholders across the technology ecosystem will be closely monitoring whether the jury finds any wrongdoing and how Judge Gonzalez Rogers ultimately rules on the matter. The decision is likely to impact not only OpenAI’s corporate structure but also the future of private investment in AI research globally.
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