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OpenAI: o1-pro API Pricing

OpenAI: o1-pro is an API model from openai. It costs $150 per 1M input tokens and $600 per 1M output tokens. Its context window is 200,000 tokens with up to 100,000 output tokens. A workload of 10M input + 2M output tokens costs about $2,700 per month.
Input
$150
per 1M tokens
Output
$600
per 1M tokens
Cached input
—
per 1M tokens
Context window
200K
200,000 tokens
Blended (80/20)
$240
per 1M tokens

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...

How much does OpenAI: o1-pro cost for a real workload?

At 10M input + 2M output tokens per month, OpenAI: o1-pro costs about $2,700 ($1,500 input + $1,200 output). Try your own volumes in the cost calculator.

What are cheaper alternatives to OpenAI: o1-pro?

Where to run OpenAI: o1-pro

AI/ML API: one API key for 400+ models, including most models tracked here · Novita AI: pay-as-you-go APIs for open models (DeepSeek, Qwen, Llama and more) plus GPU cloud. Prices there follow each platform's own catalog and can differ from the list prices tracked here.

Run it on AI/ML API →Run it on Novita AI →

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Compare OpenAI: o1-pro with other models

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Frequently asked questions

How much does OpenAI: o1-pro cost?

OpenAI: o1-pro costs $150 per 1M input tokens and $600 per 1M output tokens (list price, snapshot October 22, 2026). At 10M input + 2M output tokens per month that is about $2,700.

What is the context window of OpenAI: o1-pro?

OpenAI: o1-pro has a context window of 200,000 tokens and can return up to 100,000 output tokens per response.

What are cheaper alternatives to OpenAI: o1-pro?

Cheaper models include OpenAI: GPT-5.5 Pro ($30 in / $180 out), OpenAI: GPT-5.4 Pro ($30 in / $180 out), OpenAI: GPT-5.2 Pro ($21 in / $168 out). See the full list on this page.

Is OpenAI: o1-pro free to use?

No. OpenAI: o1-pro is a paid model at $150 input / $600 output per 1M tokens. 21 free models are listed on the free models page.

Provider: openai · Model ID: openai/o1-pro · Modality: text+image+file->text · Price snapshot October 22, 2026, refreshed daily. How we collect prices