Jan

Jan is an open-source desktop AI chat app: download and run open models like Llama, Qwen, and DeepSeek locally and offline, keeping data on your machine, or add API keys for cloud models from OpenAI, Anthropic, and others. It also exposes an OpenAI-compatible local API—great for privacy-minded users and local-model tinkerers.

• Free and open source
• Runs offline locally
• OpenAI-compatible API