Last refreshed 2026-05-19. Next refresh: weekly.
Why use o3-pro on OpenRouter?
OpenRouter offers o3-pro with pay-as-you-go pricing at $20.00/1M input tokens. OpenRouter is a multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.
Compare o3-pro across 2 providers to find the best fit for your use caseSetup recipe
Docs fallbackUse the provider REST API or SDKCreate a provider API keymodel: openai/o3-proopenai/o3-proRequest example
openai/o3-pro.Gotchas
- Use provider model ID "openai/o3-pro", not the LLMReference slug "o3-pro".
Compare o3-pro Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| OpenRouter | $20.00 | $80.00 |
| OpenAI API | $20.00 | $80.00 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $20.00 |
| Output tokens | $80.00 |
Capabilities
About o3-pro
Advanced o3 reasoning model for complex math, science, and coding problems. Supports tools, vision, and extended thinking. Available to Pro users. Released June 10, 2025.
FAQ
What does o3-pro cost on OpenRouter?
On OpenRouter, o3-pro costs $20 per 1M input tokens and $80 per 1M output tokens.
What is the context window for o3-pro on OpenRouter?
o3-pro supports a 200,000 token context window on OpenRouter.
How does OpenRouter compare to other o3-pro providers?
o3-pro is available from 2 providers. The cheapest input pricing is $20/1M tokens from OpenRouter.
What API model ID do I use for o3-pro on OpenRouter?
Use the model ID openai/o3-pro when calling OpenRouter's API.
Who created o3-pro?
o3-pro was created by OpenAI as part of the o3 model family.
Is o3-pro open source?
o3-pro is not open source; the seed data lists it as proprietary.