OpenAI is enhancing its AI agent, Operator, by upgrading it to model o3, the newest addition to the OpenAI o-series of inference models. Operator is capable of autonomously navigating the web and executing software within cloud-hosted virtual machines to fulfill user requests. Prior to this update, Operator utilized a tailored version of GPT-4o. The introduction of the o3 model showcases improved performance in mathematical and reasoning tasks, signifying a substantial boost in Operator's capabilities.