OpenAI: o3 Pro pricing
The o-series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. OpenAI: o3 Pro from OpenRouter costs $20.00 per 1M input tokens and $80.00 per 1M output tokens. Context window 200,000 tokens.
API id openai/o3-pro · OpenRouter · source · updated 2026-11-10 · general-purpose
$20.00
Input / 1M tokens
$80.00
Output / 1M tokens
—
Cached input / 1M
200K
Context window
OpenAI: o3 Pro specifications
- Provider
- OpenRouter
- API id
openai/o3-pro- Model type
- general-purpose
- Context window
- 200K tokens
- Max output
- 100K tokens
- Currency
- USD
- Price source
- Provider API
- Last checked
- 2026-11-10
Tags
- flagship
- reasoning
- vision
o3-pro across providers
The same model, priced by every seller we track. Ranked by the cost of 1M input + 1M output tokens, standard tier; savings measured against buying from the vendor directly.
| Provider | Input /1M | Cached /1M | Output /1M | 1M in + 1M out | vs vendor |
|---|---|---|---|---|---|
| $20.00 | — | $80.00 | $100.00 | — | |
| $20.00 | — | $80.00 | $100.00 | — |
What OpenAI: o3 Pro costs in practice
| Workload | Input tokens | Output tokens | Estimated cost |
|---|---|---|---|
| Short chat turn | 1,000 | 500 | $0.06 |
| Document summary | 50,000 | 2,000 | $1.16 |
| 1M tokens in, 200K out | 1,000,000 | 200,000 | $36.00 |
Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.
Common questions
- How much does OpenAI: o3 Pro cost per 1M tokens?
- OpenAI: o3 Pro costs $20.00 per 1M input tokens and $80.00 per 1M output tokens on the standard tier.
- What is OpenAI: o3 Pro's context window?
- OpenAI: o3 Pro accepts up to 200,000 tokens in a single request, and can return up to 100,000 output tokens.
- Is there a cheaper OpenRouter model than OpenAI: o3 Pro?
- Yes. Free Models Router is free per 1M input tokens versus $20.00 for OpenAI: o3 Pro, with a 200,000 token context window.
- Where does this OpenAI: o3 Pro price come from?
- From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.
Head-to-head comparisons
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- OpenAI: GPT-6.1 Terra Pro $1.00
- OpenAI: GPT-6.1 Terra $1.00
- MoonshotAI: Kimi K3.1 Pro $2.00
- Recursive: Flint (free) Free