OpenAI Launches o3-Pro: Its Most Capable Reasoning Model Yet
OpenAI has released o3-pro, an enhanced version of its o3 reasoning model, now available to ChatGPT Pro and Team subscribers with Enterprise and Edu access following the week after. The model is also live in OpenAI's developer API, priced at $20 per million input tokens and $80 per million output tokens. Unlike conventional AI models, reasoning models work through problems step by step, making them more reliable in domains like physics, mathematics, and coding. In expert evaluations, reviewers consistently preferred o3-pro over o3 across every tested category, including science, education, programming, business, and writing assistance. O3-pro also beat Google's Gemini 2.5 Pro on the AIME 2024 math benchmark and surpassed Anthropic's Claude 4 Opus on GPQA Diamond, a test of PhD-level science knowledge. The model supports web search, file analysis, visual reasoning, Python execution, and personalized responses via memory. However, there are trade-offs: responses take longer than o1-pro to complete, temporary chats are disabled due to a technical issue, and Canvas and image generation are not supported. Alongside the o3-pro launch, OpenAI reduced o3 pricing by 80%, signaling an aggressive pricing strategy as competition in the reasoning model space intensifies.
The 80% price cut on o3 alongside the o3-pro launch signals OpenAI is aggressively defending its reasoning model moat against Google and Anthropic. For developers, the API pricing makes o3-pro viable for production workloads that previously required costly custom solutions.
Who can access OpenAI o3-pro right now?
O3-pro is available immediately for ChatGPT Pro and Team users, with Enterprise and Edu access rolling out the following week. It's also available through the OpenAI API.
How much does o3-pro cost in the API?
O3-pro is priced at $20 per million input tokens and $80 per million output tokens, making it competitive with other frontier reasoning models.