Altman Defends OpenAI's Direction Under Cross-Examination in Musk Lawsuit

OpenAI CEO Sam Altman took the witness stand on May 12 in federal court in Oakland, defending his leadership and the company's evolution from nonprofit to commercial entity during cross-examination in Elon Musk's civil lawsuit. The testimony marked a pivotal moment in the three-week trial that centers on allegations that OpenAI and its leadership betrayed the organization's founding mission.

Altman described himself as an "honest and trustworthy businessperson" during questioning by Musk's attorney Steven Molo, directly pushing back against characterizations of his conduct that emerged earlier in the proceedings. The OpenAI chief executive rejected Musk's central claim that the company and its partnership with Microsoft had effectively tried to "steal a charity," according to Axios.

The Core Dispute

Musk's lawsuit, filed in 2024, accuses Altman, OpenAI co-founder Greg Brockman, and Microsoft of abandoning OpenAI's nonprofit mission to build safe artificial intelligence for humanity's benefit. The Tesla and xAI chief executive is seeking Altman's removal from OpenAI leadership as part of the civil action.

The case stems from tensions that developed after Musk co-founded OpenAI alongside Altman in 2015. During his testimony, Altman said he worried that Musk wanted control of OpenAI and testified that folding the lab into Tesla—something Musk had apparently proposed—would have eliminated the organization's nonprofit status, which Altman wanted to preserve.

Altman characterized Musk as someone who "did not keep his promises and eventually deserted OpenAI as it was trying to chart out an uncertain future," according to CNBC.

Financial Stakes and Expert Analysis

The financial implications of the dispute became clearer through court filings related to expert witness Paul Wazzan, whose analysis OpenAI moved to exclude in January. Wazzan's assessment suggested that Musk could be entitled to 50% to 75% of OpenAI's current nonprofit value based on his early contributions to the organization.

Wazzan's methodology incorporated four factors in calculating the value of Musk's stake, including qualitative assessments of his non-monetary contributions during OpenAI's formation. The substantial valuation range underscores the potential financial consequences of the legal battle for both parties.

Testimony on Leadership and Investment Activities

During his time on the witness stand, Altman addressed questions about his brief removal as CEO in November 2023, when the OpenAI board temporarily ousted him before he was reinstated following employee and investor pressure. He also defended his personal investing activities, which have drawn scrutiny given his position at the helm of one of the AI industry's most valuable companies.

The questioning touched on fundamental questions about OpenAI's structure and governance as it has evolved from a research nonprofit into a commercial entity with significant Microsoft backing. The trial is examining whether OpenAI can maintain its nonprofit designation given these changes.

Musk testified on April 29, presenting his perspective on the dispute before Altman took the stand. U.S. District Judge Yvonne Gonzalez Rogers is presiding over the case, which began with jury selection on April 28 when nine jurors were seated from a pool of 40 Bay Area residents after a five-hour selection process.

Historical Context and Industry Implications

The Musk-Altman legal battle represents a familiar pattern in the technology industry, where co-founders and early collaborators often find themselves at odds as organizations scale and evolve. We have seen this dynamic play out repeatedly—from the early days of Apple to more recent disputes at companies like Facebook and Twitter—where founding visions clash with commercial realities and competitive pressures.

The case also highlights the inherent tensions in AI development between open research missions and the substantial capital requirements needed to build frontier models. OpenAI's transformation reflects broader industry challenges around balancing safety research, commercial viability, and the massive computational resources required for state-of-the-art AI systems.

What makes this dispute particularly significant for the AI industry is its focus on organizational structure and mission alignment at a time when questions about AI safety, governance, and commercial incentives have never been more pressing. The outcome could influence how other AI research organizations structure themselves and navigate the transition from research to commercial deployment.

The trial is expected to continue for three weeks, with additional testimony from key figures in the OpenAI saga. The jury's ultimate decision will not only resolve the immediate dispute between two of Silicon Valley's most prominent figures but could also set precedents for how AI organizations balance their founding missions with the practical requirements of building and deploying advanced AI systems at scale.