OpenAI has terminated the employment of an individual due to their involvement in prediction markets, such as Polymarket, as confirmed by the company to Wired. The employee reportedly utilized confidential OpenAI data in relation to the trades conducted, according to the company’s allegations.

OpenAI did not disclose the identity of the individual. Nonetheless, a representative stated that such behavior breached company policy that prohibits employees from leveraging insider information for personal benefit, including on prediction markets.

Platforms like Polymarket and Kalshi offer users the chance to place bets on the outcomes of actual events. For example, on Polymarket, wagers are being placed regarding the types of products OpenAI will unveil in 2026 and the timeline of the company’s public offering. They can encompass any event, and substantial profits can be earned. As previously reported, an accountant secured a $470,300 prize on Kalshi by betting against DOGE enthusiasts.

Prediction markets claim they are not gambling websites and prefer to describe themselves as financial platforms. Kalshi is a regulated exchange and recently imposed fines and bans on a MrBeast editor for similar alleged insider trading activities earlier this week. OpenAI has not promptly replied to a request for further comments.