Microsoft CEO Defends OpenAI Investment Amid Elon Musk's Lawsuit

The Bottom Line

• Microsoft's initial $13 billion investment in OpenAI has appreciated significantly, with OpenAI Group PBC now valued at $135 billion.
• CEO Satya Nadella defended the investment in court, asserting its role in fostering a leading non-profit AI organization despite claims of profit-driven motives.
• A recent agreement caps $MSFT's profit share at $38 billion, potentially saving OpenAI $97 billion by 2030, mitigating future financial disputes.

Microsoft CEO Satya Nadella testified in court, defending the company's substantial investment in OpenAI, the artificial intelligence firm behind ChatGPT. Nadella expressed pride in the initial investment, which he stated contributed to creating "one of the largest and best-funded non-profit organizations in the world." This testimony occurred during the ongoing lawsuit filed by Elon Musk against OpenAI, alleging a betrayal of its founding non-profit mission.

Musk's legal team contends that internal Microsoft documents reveal a focus on profits rather than philanthropic AI development. This argument is underscored by the dramatic appreciation of Microsoft's initial $13 billion investment, which surged to $92 billion within four years. The company's stake, approximately one-quarter of OpenAI Group PBC, is now valued at $135 billion. Nadella countered these claims by stating, "If the pie got bigger, obviously the non-profit would also benefit in its mission, and that's exactly what proved to be the case."

The lawsuit by Elon Musk accuses OpenAI of abandoning its original non-profit charter and diverting $38 million in donations to build a commercial empire now valued at over $850 billion. The legal proceedings have brought to light internal conflicts among Silicon Valley engineers, investors, and executives in the years leading up to ChatGPT's 2022 launch. Musk seeks to restore OpenAI's non-profit status, a move that would significantly impact its competitive standing against rivals such as Anthropic, Google, and China's DeepSeek. OpenAI, in turn, asserts that Musk voluntarily departed after failing to secure majority control and subsequently became a direct competitor through his xAI venture, which developed the Grok AI.

Microsoft's strategic influence over OpenAI has also been a focal point. Musk's lawyers suggest $MSFT was instrumental in OpenAI's shift towards a commercial entity, citing a 2023 statement by Nadella: "We have the people, we have the compute power, we have the data, we have everything." During the brief ouster of OpenAI founder Sam Altman in 2023, Nadella intervened, stating his intent to ensure Altman and co-founder Greg Brockman would not establish a competing firm but rather join Microsoft. The day after Altman's departure, $MSFT had already established a subsidiary to accommodate them and acquire shares from employees who chose to follow, an estimated cost of approximately $25 billion. Altman eventually returned to OpenAI days later.

According to The Information, OpenAI and Microsoft have since reached a new agreement to cap $MSFT's share of AI profits. Under this arrangement, Microsoft's returns are reportedly limited to $38 billion, potentially saving OpenAI up to $97 billion by 2030. This new structure aims to clarify the financial relationship and address concerns about profit distribution.

The presiding judge, Yvonne González Rogers, will deliver a final decision on liability and potential damages following a "consultative" jury verdict. A ruling in favor of Musk could jeopardize OpenAI's planned initial public offering (IPO) this year, introducing significant uncertainty into the company's future trajectory and valuation. Musk's lawyers, in the current trial, are utilizing recently disclosed 2018 Microsoft emails to argue that the tech giant only invested in OpenAI once it identified the potential for substantial financial returns, thereby contributing to the alleged deviation from its non-profit mission.