OpenAI has terminated an employee after alleging the worker used confidential company information to place trades on prediction markets such as Polymarket. The company confirmed the decision to Wired and said the employee’s actions violated internal rules designed to prevent staff from profiting off non-public information.
While OpenAI did not disclose the employee’s name, a spokesperson emphasized that the company policy is clear: employees are not allowed to use inside information for personal gain. That restriction includes trading activity tied to prediction markets, where sensitive corporate details could give someone an unfair advantage.
Prediction markets have surged in popularity because they let users speculate on the outcome of real-world events by buying and selling positions tied to a future result. On platforms like Polymarket and Kalshi, people can wager on everything from political races to business milestones and product announcements. In OpenAI’s case, traders have been placing bets related to what the company might announce in 2026 and when it could potentially pursue an initial public offering.
These markets often argue they aren’t traditional gambling. Instead, they frame themselves as finance-like platforms that reflect collective expectations about future events. Kalshi, in particular, operates as a regulated exchange. That distinction hasn’t stopped scrutiny, especially when trades appear to be fueled by non-public information. In a separate recent example, Kalshi reportedly fined and banned an editor associated with MrBeast over similar allegations of insider-style trading.
OpenAI has not provided additional details beyond confirming the firing and pointing to its policy. Still, the incident highlights a growing tension as prediction markets expand: the more money and attention flowing into event-based trading, the greater the pressure on companies to enforce strict rules around confidential information, employee ethics, and market integrity.
