# GPT-4o (OpenAI) — API pricing and providers

> Legacy multimodal chat. Model id `openai/gpt-4o`. Text model by OpenAI.

- Page: https://infro.io/models/openai/gpt-4o
- Vendor: OpenAI (https://infro.io/models/openai)
- Modality: Text
- Endpoint through INFRO: `POST /v1/chat/completions` at https://api.infro.io/v1
- List rate: $2.50 per 1M input tokens and $10 per 1M output tokens, with cached input at $1.25 per 1M 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 GPT-4o and has not dated its shutdown yet. OpenAI recommends GPT-6 Luna. Source: https://developers.openai.com/api/docs/deprecations

## Providers that serve it

| Provider | Model id sent |
| --- | --- |
| OpenAI | `gpt-4o` |
| Azure OpenAI | `gpt-4o` |
| OpenRouter | `openai/gpt-4o` |

## Questions

### How much does the GPT-4o API cost?

OpenAI's published list rate for GPT-4o is $2.50 per 1M input tokens and $10 per 1M output tokens, with cached input at $1.25 per 1M 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 GPT-4o?

In INFRO's provider registry, GPT-4o 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 GPT-4o model ID?

Request it from INFRO as "openai/gpt-4o". INFRO sends each provider its own id: OpenAI "gpt-4o", Azure OpenAI "gpt-4o", OpenRouter "openai/gpt-4o".

### How do I call GPT-4o 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/gpt-4o" 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 GPT-4o being retired?

OpenAI has deprecated GPT-4o and has not dated its shutdown yet. OpenAI recommends GPT-6 Luna.

### Does INFRO mark up GPT-4o 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.