OpenAI

OpenAI ↗ helps you build with ChatGPT.

Endpoint

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

Chat completions endpoint

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

Responses endpoint

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

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

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-3.5-turbo-0613";
  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

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

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);
}