OpenAI · Released Mar 19, 2025o1-pro
O-series reasoning model for hard analysis, math, coding, and planning.
- Capability
- —No ECI score yet
- Input
- $150.00per 1M tokens
- Output
- $600.00per 1M tokens
- Context
- 200K100K max output
What it costs
- Input
- $150.00per million tokens
- Output
- $600.00per million tokens
- Blended (3:1)
- $262.50pricier than 100% of priced models
Typical monthly bills
| Monthly usage | Estimated cost |
|---|---|
| Side project2M input + 0.5M output tokens | $600.00 |
| Team assistant25M input + 5M output tokens | $6,750 |
| Production app250M input + 50M output tokens | $67,500 |
Official OpenAI API price, as listed on models.dev.
Independent benchmarks
Epoch AI has not published a Capabilities Index score for o1-pro yet.
The details
- Lab
- OpenAI
- Released
- Mar 19, 2025
- Knowledge cutoff
- Sep 2023
- Context window
- 200,000 tokens
- Max output
- 100,000 tokens
- Inputs
- Text, Images
- Output
- Text
- Reasoning
- Adjustable effort low · medium · high
- Tool calling
- Yes
- Structured output
- Yes
- Weights
- Proprietary
- API model ID
o1-proon OpenAI- Availability
- 5 API providerslisted on models.dev
- Status
- Deprecated by the provider
More from OpenAI
About o1-pro
How much does o1-pro cost?
o1-pro costs $150.00 input / $600.00 output per million tokens (official OpenAI API price). At a 3:1 input-to-output mix that is $262.50 per million tokens, more expensive than 100% of the 360 priced models we track.
What is the context window of o1-pro?
o1-pro accepts up to 200,000 tokens per request and can write up to 100,000 tokens in one response.
How good is o1-pro?
Epoch AI has not published a Capabilities Index score for o1-pro yet.
Is o1-pro open source?
No. o1-pro is proprietary; you use it through OpenAI’s API or partner platforms.
What inputs does o1-pro support?
o1-pro accepts text and images and replies in text. It is a reasoning model with low, medium and high effort settings, supports tool calling and can return structured JSON output.
When was o1-pro released?
OpenAI released o1-pro on Mar 19, 2025. Its training data runs to Sep 2023.
What are the best alternatives to o1-pro?
The closest current models from other labs on capability, price and release date are Aya Vision 32B (Cohere), ALLaM-2-7b (SDAIA), Gemini 2.0 Flash-Lite (Google) and Kimi K2 Thinking Turbo (Moonshot AI).