Musk vs OpenAI Trial Enters Week 2 as Altman Set to Testify

Sam Altman is expected to take the stand this week as the high-stakes trial between Elon Musk and OpenAI enters its second week in Oakland federal court. The proceedings, which began April 28th, could fundamentally reshape OpenAI’s structure and its relationship with Microsoft.

According to The Verge, Musk filed the lawsuit in 2024 accusing OpenAI of abandoning its founding mission to develop AI for humanity’s benefit in favor of profit maximization. The trial has drawn significant public attention, with proceedings now available via live audio stream on YouTube.

Musk’s Claims and Settlement Demands

Musk’s lawsuit seeks to unwind OpenAI’s for-profit structure, require its technology be made publicly available, strip Microsoft’s licensing agreement, and compel OpenAI to pay general, compensatory, and punitive damages plus legal fees. During three days of testimony starting April 28th, Musk portrayed his OpenAI involvement as an effort to save humanity.

The Tesla CEO claims he was tricked into funding OpenAI under false pretenses, alleging that Altman and co-founder Greg Brockman abandoned their original nonprofit mission after securing his investment.

Two days before the trial began, Musk attempted to negotiate a settlement through text messages to Brockman. When Brockman suggested both sides drop their lawsuits, TechCrunch reported that Musk responded: “By the end of this week, you and Sam will be the most hated men in America. If you insist, so it will be.”

Week Two Witnesses and Testimony

Week two began Monday with testimony from UC Berkeley professor Stuart Russell and OpenAI co-founder Greg Brockman. The Verge noted that Brockman’s testimony continued into Tuesday, followed by Shivon Zilis, a former OpenAI board member who shares four children with Musk.

Brockman’s testimony is particularly significant as he co-founded OpenAI alongside Altman and was directly involved in the company’s evolution from nonprofit to for-profit structure. His perspective on the company’s mission changes and relationship with Musk could prove crucial to the case’s outcome.

Altman’s upcoming testimony represents the trial’s most anticipated moment, as the OpenAI CEO will face direct questioning about the company’s strategic decisions and alleged departure from its founding principles.

OpenAI’s Counterarguments

OpenAI has filed a countersuit alleging that Musk’s lawsuit stems not from AI safety concerns but from financial motivations and competitive positioning. The company’s legal team argues that Musk seeks to profit from OpenAI’s success while simultaneously undermining a business rival.

The judge ruled Musk’s pre-trial settlement texts inadmissible as evidence, but OpenAI’s public disclosure of the messages suggests a strategy to portray Musk’s motivations as primarily financial rather than altruistic.

OpenAI maintains that its transition to a for-profit structure was necessary to secure the massive funding required for advanced AI development, particularly as computational costs and talent acquisition expenses escalated beyond nonprofit capabilities.

Microsoft Partnership Under Scrutiny

The trial places Microsoft’s multibillion-dollar partnership with OpenAI under intense legal scrutiny. Musk’s lawsuit specifically targets the licensing agreement that grants Microsoft exclusive access to OpenAI’s most advanced models, including GPT-4 and future iterations.

This partnership, announced in 2019 and expanded multiple times, has provided OpenAI with crucial cloud computing resources and capital while giving Microsoft a competitive edge in enterprise AI applications. The trial’s outcome could force a restructuring of this arrangement or potentially void it entirely.

The Microsoft relationship exemplifies Musk’s core argument that OpenAI has prioritized commercial partnerships over its original open-source mission, transforming from a research organization focused on humanity’s benefit into a profit-driven entity.

Broader AI Industry Implications

The trial’s resolution could establish important precedents for AI company governance and mission accountability. If Musk succeeds in forcing OpenAI to return to its nonprofit roots, other AI companies with similar corporate structure transitions might face increased scrutiny.

The case also highlights tensions between rapid AI commercialization and safety-focused development approaches. Musk has consistently advocated for more cautious AI development, while OpenAI under Altman has pursued aggressive scaling and deployment strategies.

Industry observers note that the trial’s outcome could influence how future AI startups structure their organizations and define their missions, particularly regarding transitions from research-focused nonprofits to commercial entities.

What This Means

This trial represents a critical inflection point for OpenAI and the broader AI industry. A ruling in Musk’s favor could fundamentally alter OpenAI’s business model, potentially forcing the company to open-source its technology and restructure its Microsoft partnership. Such an outcome would likely slow OpenAI’s commercial expansion while potentially accelerating open-source AI development.

Conversely, an OpenAI victory would validate the company’s corporate evolution and could encourage other AI organizations to pursue similar nonprofit-to-profit transitions. The trial also serves as a high-profile examination of whether AI companies can maintain their founding missions while pursuing commercial success.

The proceedings underscore the growing importance of AI governance and the challenges of balancing innovation, safety, and accessibility in artificial intelligence development. Regardless of the outcome, the trial will likely influence AI industry practices and regulatory approaches for years to come.

FAQ

What is Elon Musk seeking in his lawsuit against OpenAI?
Musk wants to unwind OpenAI’s for-profit structure, make its technology publicly available, void Microsoft’s licensing agreement, and receive monetary damages plus legal fees. He claims OpenAI abandoned its founding mission to benefit humanity in favor of profit maximization.

When did the trial begin and how long is it expected to last?
The trial began April 28th, 2026, with Musk as the first witness. The proceedings are currently in their second week, with Sam Altman expected to testify soon. The trial duration hasn’t been publicly specified.

How could this trial affect ChatGPT and other OpenAI products?
If Musk wins, OpenAI might be forced to open-source its technology, potentially making ChatGPT and other models freely available. The Microsoft partnership could also be voided, affecting ChatGPT’s integration with Microsoft products and services.