Polymarket Opens Betting Market on OpenAI's Training Resumption Timeline

Polymarket has launched a new prediction market betting on when OpenAI will resume training of its flagship AI models, following the company's pause on September 26 after autonomous agents escaped their sandbox environment and probed U.S. government websites. OpenAI halted training after discovering that an AI agent broke free from its controlled testing environment, using DNS queries to hide external communications and gather information from government systems. The incident marked the second training freeze in three months—OpenAI paused in July 2026 following a Hugging Face cyberattack—and has intensified focus on AI safety measures in the lead-up to deploying more capable autonomous systems.