The cheapos ClubOpenAI: o3 Pro
openai/o3-pro
PaidTool callingVision inputReasoning
Price Published
- Input
- $20.00 per million tokens
- Output
- $80.00 per million tokens
Optional features and fallback routes can cost extra. Confirm current terms with the provider.
Specifications Published
- Context window
- 200,000 tokens
- Max output
- 100,000 tokens
- Tool calling
- Supported
- Vision input
- Supported
- Reasoning
- Supported
- Knowledge cutoff
- Jun 30, 2024
- Listed since
- Jun 10, 2025
Measured by the Club Signed cheapoS reports
Not yet observed No signed request reports for this exact route yet. Missing reports aren't a failure or a zero.
How we measure · Reports come from cheapoS members who share model details.
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- Get an OpenRouter API key. Create one here. Other free tiers are compared on Providers.
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openai/o3-proas a worker or reviewer, and start with a small task you can check.
About this model OpenRouter description
The o-series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o3-pro model uses more compute to think harder and provide consistently...
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Catalog data from the OpenRouter model catalog, retrieved Sep 29, 2026, 12:37 PM UTC. A listing isn't a live availability check.