OpenAI: Greg Brockman's split with Musk began at a 'haunted mansion'

OpenAI president Greg Brockman told an Oakland jury that the rift with Elon Musk traced back to a 2017 gathering at a house Musk described as a 'haunted mansion', held shortly after an internal celebration. Brockman said days after that meeting a larger dispute over control and strategy erupted within the founding group.

In testimony and court documents, Brockman recounted that attendees celebrated a milestone and that Amber Heard, identified in filings as Musk's then‑girlfriend, served whiskey during the gathering. Those scenes were followed by heated discussions about whether OpenAI should pursue commercial avenues, a debate that later became central to Musk's lawsuit.

Musk's lawsuit accuses OpenAI executives of breaching the nonprofit founding agreement by shifting toward for‑profit models; OpenAI counters that the claims reflect competitive animus and points to contemporaneous notes and emails about corporate structure. The contested documents shown in court indicate participants discussed forming a for‑profit vehicle as early as 2017, a matter now litigated before a federal jury.

Although the case does not directly move a public OpenAI share price, stakeholders including Microsoft and companies associated with Musk are watching closely, given potential implications for governance, investment terms and partnerships in the AI sector. Market observers say the trial could influence how future AI ventures balance nonprofit missions with commercial funding.

Analysts say a court verdict is more likely to affect legal and contractual standards than short‑term capital flows, but emphasize the reputational and regulatory precedents that could follow. Court filings showing settlement overtures and heated messages between principals suggest the dispute combines both strategic business rivalry and genuine legal claims; investors will monitor subsequent testimony and rulings for clues about long‑term sector governance.