---
title: Baseten
description: Route Baseten model inference requests through AI Gateway for observability and control.
image: https://developers.cloudflare.com/dev-products-preview.png
---

> Documentation Index  
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# Baseten

[Baseten ↗](https://www.baseten.co/) provides infrastructure for building and deploying machine learning models at scale. Baseten offers access to various language models through a unified chat completions API.

## Endpoint

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

## Prerequisites

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

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

## OpenAI-compatible chat completions API

Baseten provides an OpenAI-compatible chat completions API for supported models.

### cURL

Example fetch request

```
curl https://gateway.ai.cloudflare.com/v1/{account_id}/{gateway_id}/baseten/v1/chat/completions \  --header 'Authorization: Bearer {baseten_api_token}' \  --header 'Content-Type: application/json' \  --data '{    "model": "openai/gpt-oss-120b",    "messages": [      {        "role": "user",        "content": "What is Cloudflare?"      }    ]  }'
```

### Use OpenAI SDK with JavaScript

JavaScript

```
import OpenAI from "openai";
const apiKey = "{baseten_api_token}";const accountId = "{account_id}";const gatewayId = "{gateway_id}";const baseURL = `https://gateway.ai.cloudflare.com/v1/${accountId}/${gatewayId}/baseten`;
const openai = new OpenAI({  apiKey,  baseURL,});
const model = "openai/gpt-oss-120b";const messages = [{ role: "user", content: "What is Cloudflare?" }];
const chatCompletion = await openai.chat.completions.create({  model,  messages,});
console.log(chatCompletion);
```

## OpenAI-Compatible Endpoint

You can also access Baseten models using the OpenAI API schema through the [REST API](https://developers.cloudflare.com/ai-gateway/usage/rest-api/). Send your requests to:

```
https://api.cloudflare.com/client/v4/accounts/{account_id}/ai/v1/chat/completions
```

Specify:

```
{"model": "baseten/{model}"}
```

## Model-specific endpoints

For models that don't use the OpenAI-compatible API, you can access them through their specific model endpoints.

### cURL

Example fetch request

```
curl https://gateway.ai.cloudflare.com/v1/{account_id}/{gateway_id}/baseten/model/{model_id} \  --header 'Authorization: Bearer {baseten_api_token}' \  --header 'Content-Type: application/json' \  --data '{    "prompt": "What is Cloudflare?",    "max_tokens": 100  }'
```

### Use with JavaScript

JavaScript

```
const accountId = "{account_id}";const gatewayId = "{gateway_id}";const basetenApiToken = "{baseten_api_token}";const modelId = "{model_id}";const baseURL = `https://gateway.ai.cloudflare.com/v1/${accountId}/${gatewayId}/baseten`;
const response = await fetch(`${baseURL}/model/${modelId}`, {  method: "POST",  headers: {    "Authorization": `Bearer ${basetenApiToken}`,    "Content-Type": "application/json",  },  body: JSON.stringify({    prompt: "What is Cloudflare?",    max_tokens: 100,  }),});
const result = await response.json();console.log(result);
```

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