OpenAI o3‑pro is a “pro” variant of the o3 reasoning model engineered to think longer and deliver the most dependable responses by employing private chain‑of‑thought reinforcement learning and setting new state‑of‑the‑art benchmarks across domains like science, programming, and business—while autonomously integrating tools such as web search, file analysis, Python execution, and visual reasoning within API.
Model Type: Chat