# Chatbox [Chatbox](https://github.com/chatboxai/chatbox) is a desktop client for LLMs, available on Windows, Mac, Linux. It allows you to deploy a large language model (LLM) server with vLLM as the backend, which exposes OpenAI-compatible endpoints. ## Prerequisites Set up the vLLM environment: ```bash pip install vllm ``` ## Deploy 1. Start the vLLM server with the supported chat completion model, e.g. ```bash vllm serve qwen/Qwen1.5-0.5B-Chat ``` 1. Download and install [Chatbox desktop](https://chatboxai.app/en#download). 1. On the bottom left of settings, Add Custom Provider - API Mode: `OpenAI API Compatible` - Name: vllm - API Host: `http://{vllm server host}:{vllm server port}/v1` - API Path: `/chat/completions` - Model: `qwen/Qwen1.5-0.5B-Chat` ![](../../assets/deployment/chatbox-settings.png) 1. Go to `Just chat`, and start to chat: ![](../../assets/deployment/chatbox-chat.png)