Updated: This article has been revised to reflect the current posture of Elon Musk’s lawsuit against OpenAI: no trial testimony has taken place, OpenAI’s restructuring plan has changed, and the fight now includes broader claims involving Microsoft, competition, governance, and OpenAI’s public-benefit commitments.
Musk’s Lawsuit Against OpenAI Is Still Moving — But the Trial Hasn’t Happened Yet
Elon Musk’s legal fight with OpenAI and Sam Altman is still very much alive, but the case has not yet reached the kind of courtroom showdown described in earlier coverage. Musk has not spent days testifying at trial. Instead, the dispute remains in pretrial litigation, with filings, injunction requests, counterclaims, and public sparring doing most of the work so far.
The core of Musk’s case remains explosive: he argues that OpenAI abandoned the nonprofit mission it advertised when he helped launch and fund the organization in 2015. Musk says OpenAI was created to develop artificial general intelligence safely and “for the benefit of humanity,” not to become a Microsoft-backed commercial powerhouse. OpenAI counters that Musk’s claims distort the company’s history, that there was no binding founding contract requiring it to stay purely nonprofit, and that Musk himself previously supported raising massive sums of capital — including through a for-profit structure — if it helped OpenAI compete.
That history matters because OpenAI’s structure has changed dramatically. In 2019, OpenAI created a “capped-profit” entity to raise outside capital while keeping the original nonprofit in control. Microsoft then became its most important strategic partner, beginning with a $1 billion investment and later expanding the relationship through a multibillion-dollar cloud and AI partnership. Since the release of ChatGPT, OpenAI’s valuation has surged, with reports in 2025 placing it around $300 billion after a major funding round led by SoftBank.
Musk’s lawsuit targets that evolution. He claims OpenAI’s leaders, including Altman and Greg Brockman, steered the organization away from its founding commitments and into a profit-driven alliance with Microsoft. OpenAI says the opposite: that its mission requires enormous computing resources, talent, and infrastructure, and that the capped-profit model was designed to fund safe AI development while preserving nonprofit oversight.
The most important recent development is that Musk sought a preliminary injunction to stop OpenAI’s restructuring plans, but the court declined to grant that emergency relief. U.S. District Judge Yvonne Gonzalez Rogers signaled skepticism about Musk’s ability to prove some of his contract claims at this stage, while still allowing the broader litigation to proceed. That means Musk did not win an immediate freeze on OpenAI’s plans — but he also did not lose the case outright.
OpenAI’s Restructuring Has Changed, but the Governance Fight Remains
OpenAI’s corporate direction is now the center of the dispute. Earlier plans to shift more fully toward a conventional for-profit structure triggered criticism from Musk, former employees, AI safety advocates, and state officials. OpenAI later revised its approach, saying its nonprofit parent would retain control while the operating business would become a public benefit corporation, or PBC.
That change is significant. A PBC structure allows a company to pursue profit while also committing to a public-benefit mission. For OpenAI, the move is meant to make it easier to raise capital and compensate employees while preserving the nonprofit’s formal oversight role. Critics, including Musk, argue that the practical effect may still be to prioritize commercial growth, Microsoft’s interests, and investor returns over the original mission.
The court fight is therefore about more than whether one founder feels betrayed. It is testing how enforceable a mission statement can be once a nonprofit-backed tech lab becomes one of the most valuable companies in the world. Musk says early supporters were sold on a promise of open, safety-focused AI development. OpenAI says that promise never meant it had to publish all research, avoid commercial partnerships, or refuse capital-intensive infrastructure deals.
Microsoft’s role keeps raising the stakes. Musk’s amended claims have taken aim at the OpenAI-Microsoft relationship, arguing that the partnership concentrates too much control over advanced AI and disadvantages rivals — including Musk’s own AI company, xAI. OpenAI and Microsoft reject that framing, saying the partnership is lawful, commercially necessary, and subject to governance limits.
OpenAI has also gone on offense. The company has accused Musk of using litigation and public attacks to undermine a competitor after failing to gain control of OpenAI years earlier. OpenAI has pointed to old communications suggesting Musk once pushed for OpenAI to raise far more money, considered merging it with Tesla, and wanted a structure that would let it compete with Google. Musk disputes OpenAI’s interpretation and maintains that his objections are about mission drift and AI safety, not competition.
Adding another twist, Musk and a group of investors made an unsolicited offer in 2025 to buy OpenAI’s nonprofit assets for roughly $97 billion. OpenAI’s board rejected the bid, with Altman publicly dismissing it as an attempt to disrupt the company. The offer has since become part of the broader narrative: Musk says it showed the nonprofit’s assets have enormous value; OpenAI says it showed Musk’s lawsuit is intertwined with competitive and strategic motives.
What to Expect Next in the Musk vs. OpenAI Legal Battle
The next phase will likely focus on discovery, corporate documents, internal communications, and depositions rather than dramatic public testimony. If the case proceeds toward trial, former OpenAI insiders, board members, investors, and Microsoft-linked witnesses could become central to the record. Their testimony may clarify what OpenAI’s founders understood in 2015, what commitments were made to donors and early backers, and how the organization justified its shift to a capped-profit model in 2019.
Key questions remain unresolved:
- Was there a legally enforceable founding agreement, or only a broad mission statement?
- Did OpenAI’s nonprofit board maintain genuine control over the commercial arm?
- Did Microsoft’s investment and partnership create conflicts with OpenAI’s public-benefit mission?
- Did Musk support similar commercial moves before later opposing them?
- Does Musk have standing to challenge OpenAI’s structure now that he runs a competing AI company?
The court’s refusal to issue an early injunction suggests Musk faces a high legal bar, especially on claims that depend on proving a binding contract. But the case still poses reputational and strategic risks for OpenAI. Discovery could surface more internal debate about safety, commercialization, Microsoft’s influence, and the company’s long-term governance. Even if OpenAI ultimately wins, the litigation may force more transparency around how one of the world’s most important AI companies is controlled.
For investors, the case is a warning about mission-driven corporate structures. AI startups frequently pitch themselves as public-benefit organizations or safety-first labs while still needing huge sums of capital. Musk’s lawsuit asks what happens when those two narratives collide. If founders, donors, employees, and investors all believe different things about a company’s mission, courts may increasingly be asked to sort out whether those statements are enforceable promises or aspirational branding.
For regulators, the case adds pressure to examine AI partnerships more closely. Microsoft’s relationship with OpenAI has already drawn scrutiny in the U.S., U.K., and Europe. Musk’s lawsuit is not a regulatory case, but it echoes the same concerns: market concentration, access to compute, control over frontier models, and whether a handful of companies can shape the direction of advanced AI.
The legal fight is likely to stretch on, and the outcome could affect more than OpenAI. It may influence how future AI labs write their charters, structure nonprofit oversight, disclose investor rights, and communicate mission changes to employees and the public. Musk v. Altman is not yet the trial spectacle some expected — but as a governance battle over the future of AI, it is still just getting started.
Why It Matters
- The lawsuit could shape how AI companies balance nonprofit missions, investor demands, and commercial scale.
- OpenAI’s revised restructuring keeps nonprofit control on paper, but questions remain about practical governance.
- Microsoft’s role makes the case part of a broader debate over competition and concentration in AI.
- The outcome may influence how founders, donors, employees, and regulators evaluate “public benefit” promises in frontier AI.
