Shivon Zilis took the stand Wednesday, thrusting one of the most scrutinized relationships in tech into Elon Musk’s high-stakes courtroom clash with OpenAI.
Zilis serves as an executive at Neuralink, Musk’s brain implant company, and previously sat on OpenAI’s board from 2020 to 2023. Reports indicate her testimony drew intense interest because OpenAI has argued that, during years of overlap with the company, she also maintained a secret relationship with Musk and acted as an informant for him. That claim cuts straight to the trust, governance, and loyalty questions now hanging over the case.
The dispute no longer centers only on OpenAI’s corporate structure; it now turns on who knew what, when they knew it, and whether key relationships shaped the company’s path.
Musk’s lawsuit targets OpenAI chief executive Sam Altman and president Greg Brockman, both co-founders alongside Musk. He argues they broke a founding agreement by steering OpenAI away from its original non-profit mission and into a for-profit model. According to the case, that shift allowed Altman and Brockman to enrich themselves unjustly. Musk wants both men removed from their roles, the restructuring unwound, and $134bn in damages redirected to OpenAI’s non-profit arm.
Key Facts
- Shivon Zilis testified Wednesday in Elon Musk’s case against OpenAI.
- Zilis worked with OpenAI from 2016 to 2023 and served on its board from 2020 to 2023.
- OpenAI has argued that Zilis acted as an informant for Musk during a secret relationship.
- Musk seeks to reverse OpenAI’s for-profit restructuring and redistribute $134bn in damages to its non-profit arm.
The testimony matters because Musk’s lawsuit reaches far beyond a personal feud. It attacks the foundation of OpenAI’s rise: who controls an organization built with public-interest language but now sits at the center of an enormous commercial boom. Zilis’ role links several of Musk’s worlds at once — OpenAI, Neuralink, and his broader influence over the companies and people around him — making her appearance especially significant even where details remain contested.
What comes next could shape more than this single case. If the court gives weight to Musk’s claims, OpenAI could face pressure on its leadership, its structure, and the legal logic behind its transformation. If those claims fall short, the company may emerge stronger, with a clearer mandate to keep building as a commercial powerhouse. Either way, the trial now stands as a test of how much the original promises behind AI labs still matter once money and control flood in.