# o3-pro (OpenAI) — API pricing and providers

> High-compute reasoning. Model id `openai/o3-pro`. Text model by OpenAI.

- Page: https://infro.io/models/openai/o3-pro
- Vendor: OpenAI (https://infro.io/models/openai)
- Modality: Text
- Endpoint through INFRO: `POST /v1/chat/completions` at https://api.infro.io/v1
- List rate: $20 per 1M input tokens and $80 per 1M output tokens
- Rates checked: 2026-10-05

Rates are OpenAI's published list price: what the customer's own provider account bills, not an INFRO charge. INFRO is a BYOK control plane; it charges a software subscription and adds 0% to model spend.

**Retirement:** OpenAI has deprecated o3-pro and has not dated its shutdown yet. OpenAI recommends GPT-5.6 Sol. Source: https://developers.openai.com/api/docs/deprecations

## Providers that serve it

| Provider | Model id sent |
| --- | --- |
| OpenAI | `o3-pro` |
| Azure OpenAI | `o3-pro` |
| OpenRouter | `openai/o3-pro` |

## Questions

### How much does the o3-pro API cost?

OpenAI's published list rate for o3-pro is $20 per 1M input tokens and $80 per 1M output tokens (checked 2026-10-05). The provider account you connect bills you at the rate on that account, so a negotiated rate replaces the list rate. INFRO adds 0% to model spend.

### Which providers serve o3-pro?

In INFRO's provider registry, o3-pro can be served by OpenAI, Azure OpenAI and OpenRouter. You connect your own account with any of them, and INFRO routes and fails over between the ones you connect.

### What is the o3-pro model ID?

Request it from INFRO as "openai/o3-pro". INFRO sends each provider its own id: OpenAI "o3-pro", Azure OpenAI "o3-pro", OpenRouter "openai/o3-pro".

### How do I call o3-pro through an OpenAI-compatible API?

Point an OpenAI SDK, or any HTTP client, at https://api.infro.io/v1 with an INFRO gateway key and send model "openai/o3-pro" to POST /v1/chat/completions. INFRO runs the request on a provider account you connected and returns the provider's response with an estimated cost.

### Is o3-pro being retired?

OpenAI has deprecated o3-pro and has not dated its shutdown yet. OpenAI recommends GPT-5.6 Sol.

### Does INFRO mark up o3-pro usage?

No. OpenAI or the provider you connect bills model usage to your own account. INFRO charges a software subscription for routing, failover, observability, budgets and policy, and takes 0% of model spend.