Jan

What is Jan?

Jan is an open-source desktop application that lets you run AI models entirely offline on your own hardware. It provides a polished ChatGPT-like chat interface with support for Llama, Mistral, Gemma, Phi, and dozens of other open-source models. Download models with one click and start chatting — no API keys, no internet required, no data leaves your machine. Jan also supports remote API connections (OpenAI, Anthropic, etc.) as a unified interface for all your AI models. Features include conversation history, system prompts, model parameter tuning, and extensions. Built on open standards, Jan is designed for developers and privacy-conscious users who want full control over their AI tools.

Key Features

Frequently Asked Questions