> ## Documentation Index
> Fetch the complete documentation index at: https://concentrate.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Chat Completions

> OpenAI Chat Completions API compatibility endpoint for Cursor, Opencode, and other clients

<Warning>
  **Beta Feature**

  The Chat Completions API is currently in beta. It provides OpenAI Chat Completions API compatibility for clients like Cursor, Opencode, and other tools that use the OpenAI format. For production use, we recommend using the [Responses API](/docs/api-reference/endpoint/create-response) instead.
</Warning>

## Overview

OpenAI Chat Completions API compatibility endpoint. Use Concentrate as a drop-in replacement for OpenAI in any tool or SDK that supports configurable base URLs.


## API Specification

The full API specification for this endpoint is available in the [documentation index](https://concentrate.ai/docs/llms.txt).