o3-pro · OpenAI
o3-pro This model only supports Requests API interface requests.The model's thinking time is relatively long, so the response will be slow.
o3-pro This model only supports Requests API interface requests.The model's thinking time is relatively long, so the response will be slow.
O3 Pro has a 200,000 token context window.
On AIHubMix, O3 Pro costs $20 per million input tokens and $80 per million output tokens.
O3 Pro accepts text and image input.
O3 Pro supports thinking, tool calling, function calling and structured outputs. Per-protocol parameter support is listed in the capability table on this page.
O3 Pro is available through the AIHubMix unified API. The API is OpenAI-compatible: point your OpenAI SDK at https://aihubmix.com/v1, use your AIHubMix API key, and set the model name to o3-pro — no other code changes needed.
O3 Pro is developed by OpenAI. AIHubMix aggregates it alongside models from other providers behind one API and one bill.
O3 Pro was released on June 10, 2025 by OpenAI.
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Use O3 Pro via the AIHubMix unified API — one interface for every major LLM.