O1 Pro

o1-pro · OpenAI

The o1 series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o1-pro model uses more compute to think harder and provide consistently better answers.

API Pricing

Input$170 / 1M tokens
Output$680 / 1M tokens

Specifications

Modalitiestext
Featuresthinking

Frequently asked questions

What is O1 Pro?

The o1 series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o1-pro model uses more compute to think harder and provide consistently better answers.

How much does O1 Pro cost?

On AIHubMix, O1 Pro costs $170 per million input tokens and $680 per million output tokens.

What modalities does O1 Pro support?

O1 Pro accepts text input.

What capabilities does O1 Pro support?

O1 Pro supports thinking. Per-protocol parameter support is listed in the capability table on this page.

How do I call O1 Pro via API?

O1 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 o1-pro — no other code changes needed.

Who created O1 Pro?

O1 Pro is developed by OpenAI. AIHubMix aggregates it alongside models from other providers behind one API and one bill.

When was O1 Pro released?

O1 Pro was released on March 19, 2025 by OpenAI.

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Use O1 Pro via the AIHubMix unified API — one interface for every major LLM.