---
title: OpenAI · Cloudflare AI Gateway docs
description: OpenAI helps you build with ChatGPT.
lastUpdated: 2025-11-24T18:38:12.000Z
chatbotDeprioritize: false
source_url:
  html: https://developers.cloudflare.com/ai-gateway/usage/providers/openai/
  md: https://developers.cloudflare.com/ai-gateway/usage/providers/openai/index.md
---

[OpenAI](https://openai.com/about/) helps you build with ChatGPT.

## Endpoint

```txt
https://gateway.ai.cloudflare.com/v1/{account_id}/{gateway_id}/openai
```

### Chat completions endpoint

```txt
https://gateway.ai.cloudflare.com/v1/{account_id}/{gateway_id}/openai/chat/completions \
```

### Responses endpoint

```txt
https://gateway.ai.cloudflare.com/v1/{account_id}/{gateway_id}/openai/responses \
```

## URL structure

When making requests to OpenAI, replace `https://api.openai.com/v1` in the URL you are currently using with `https://gateway.ai.cloudflare.com/v1/{account_id}/{gateway_id}/openai`.

## Prerequisites

When making requests to OpenAI, ensure you have the following:

* Your AI Gateway Account ID.
* Your AI Gateway gateway name.
* An active OpenAI API token.
* The name of the OpenAI model you want to use.

## Chat completions endpoint

### cURL example

```bash
curl https://gateway.ai.cloudflare.com/v1/{account_id}/{gateway_id}/openai/chat/completions \
--header 'Authorization: Bearer {openai_token}' \
--header 'Content-Type: application/json' \
--data '{
  "model": "gpt-4o-mini",
  "messages": [
    {
      "role": "user",
      "content": "What is Cloudflare?"
    }
  ]
}'
```

### JavaScript SDK example

```js
import OpenAI from "openai";


const apiKey = "my api key"; // or process.env["OPENAI_API_KEY"]
const accountId = "{account_id}";
const gatewayId = "{gateway_id}";
const baseURL = `https://gateway.ai.cloudflare.com/v1/${accountId}/${gatewayId}/openai`;


const openai = new OpenAI({
  apiKey,
  baseURL,
});


try {
  const model = "gpt-5-mini";
  const messages = [{ role: "user", content: "What is a neuron?" }];
  const maxTokens = 100;
  const chatCompletion = await openai.chat.completions.create({
    model,
    messages,
    max_tokens: maxTokens,
  });
  const response = chatCompletion.choices[0].message;
  console.log(response);
} catch (e) {
  console.error(e);
}
```

## OpenAI Responses endpoint

### cURL example

```bash
curl https://gateway.ai.cloudflare.com/v1/{account_id}/{gateway_id}/openai/responses \
--header 'Authorization: Bearer {openai_token}' \
--header 'Content-Type: application/json' \
--data '{
  "model": "gpt-4.1",
  "input": [
    {
      "role": "user",
      "content": "Write a one-sentence bedtime story about a unicorn."
    }
  ]
}'
```

### JavaScript SDK example

```js
import OpenAI from "openai";


const apiKey = "my api key"; // or process.env["OPENAI_API_KEY"]
const accountId = "{account_id}";
const gatewayId = "{gateway_id}";
const baseURL = `https://gateway.ai.cloudflare.com/v1/${accountId}/${gatewayId}/openai`;


const openai = new OpenAI({
  apiKey,
  baseURL,
});


try {
  const model = "gpt-4.1";
  const input = [
    {
      role: "user",
      content: "Write a one-sentence bedtime story about a unicorn.",
    },
  ];
  const response = await openai.responses.create({
    model,
    input,
  });
  console.log(response.output_text);
} catch (e) {
  console.error(e);
}
```
