Elon Musk began his trial against OpenAI by testifying that the firm, under Sam Altman, abandoned its original non-profit mission for profit.
OpenAI counters that the lawsuit is fueled by Musk's regret over leaving the company before its major successes and that his donations were used appropriately.
The company faces multiple pressures, including Musk's lawsuit, a judge's social media caution, and a separate criminal investigation in Florida involving ChatGPT.

Atlas AI
Musk Alleges Betrayal of Founding Mission
The high-stakes Elon Musk OpenAI trial began Tuesday with Musk taking the stand as the first witness. He accused the company he co-founded of abandoning its original humanitarian mission.
In his testimony, Musk stated, "It's not okay to steal a charity." The lawsuit, filed in early 2024, targets OpenAI, CEO Sam Altman, co-founder Greg Brockman, and key partner Microsoft for what Musk alleges is a betrayal of the company’s non-profit origins.
Musk is seeking significant legal remedies, including a complete restructuring of OpenAI's corporate governance. He is also demanding the removal of Altman and Brockman from their leadership positions and unspecified damages that could reach hundreds of billions of dollars.
Musk was instrumental in OpenAI’s formation in 2015, contributing $38 million before departing from the board in 2018. He now leads a direct competitor, xAI, which adds a complex layer to the legal dispute.
OpenAI Counters with Accusations of Regret
OpenAI’s defense team paints a different picture, claiming the lawsuit is driven by Musk's professional jealousy and regret. They argue that he left the organization before the monumental success of its products like ChatGPT.
The company maintains that Musk’s financial contributions were used as intended for research. OpenAI's lawyers assert that his objections to the company's for-profit pivot only emerged after it became a dominant force in the AI industry.
The contentious nature of the dispute prompted U.S. District Judge Yvonne Gonzalez Rogers to issue a caution to both Musk and Altman. She warned them to avoid litigating the case on social media, following Musk's previous posts on X where he referred to Altman as "Scam."
External Pressures and Future Stakes
Beyond this lawsuit, OpenAI is navigating other significant legal challenges. Last week, Florida Attorney General James Uthmeier launched a criminal investigation into the company and its ChatGPT technology.
That inquiry stems from a review of chats connected to the 2025 Florida State University shooting, adding another layer of scrutiny as OpenAI prepares for major corporate moves. The company’s legal battles are unfolding against a backdrop of ambitious financial goals.
The trial is expected to continue for approximately four weeks. Its outcome could have profound implications for OpenAI, which is reportedly planning an Initial Public Offering (IPO) in the fourth quarter of 2026 with a target valuation of $852 billion.

