OpenAI has dismissed an unnamed employee after discovering that the worker used confidential company information to trade on prediction market platforms such as Polymarket. The company said the conduct violated its internal policy that bars the use of inside information for personal gain. Prediction markets, which allow users to wager on real‑world outcomes, argue they are financial platforms rather than gambling sites. OpenAI did not provide further comment, and the incident highlights the growing scrutiny of insider activity on emerging financial exchanges. Read more →