o3-pro
Released
o3-pro is an AI model released by OpenAI on Tuesday, Jun 10 2025, 55 days after o4-mini-high.
API pricing
- InputWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it.
- $20.00
- OutputWhat you pay for the text the model writes back. It is normally the dearer half: producing an answer costs more than reading one.
- $80.00
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Frequently asked questions
o3-pro was released by OpenAI on Tuesday, Jun 10 2025.
o3-pro was built by OpenAI. Creators of ChatGPT and the GPT series of models. Pioneered large-scale language model research.
o3-pro costs $20.00 per million input tokens and $80.00 per million output tokens through the OpenAI API. Rates are pay-as-you-go API prices verified against OpenAI's published pricing on August 18, 2026.
No. o3-pro is a proprietary model. The weights are not published — it is available only through the provider's own API, apps, or partner platforms.
OpenAI's previous tracked release was o4-mini-high on Apr 16 2025, 55 days earlier. It was followed by gpt-oss-120b on Aug 5 2025.