I don't have information about ChatGPT O3-Pro, as this appears to be a model that was released after my knowledge cutoff. Let me search for current information about it.
Based on my search results, here's how to get the most out of ChatGPT O3-Pro:
O3-Pro is OpenAI's most advanced reasoning model, released in June 2025. It's available exclusively to ChatGPT Pro users ($200/month) and Team users, replacing the previous o1-pro model.