Overview
Jan is a free, open-source alternative to ChatGPT that runs entirely on your computer. Download and run local LLMs like Llama, Gemma, Qwen, and GPT-oss from Hugging Face, or connect to cloud models from OpenAI, Anthropic, Mistral, and Groq. Features an OpenAI-compatible API server at localhost:1337 for developer integration, Model Context Protocol (MCP) support for agentic capabilities, and real-time web search. Apple Silicon Macs benefit from Metal GPU acceleration for faster inference.
Minimum macOS: 13.6 (Ventura)
Architecture: Apple Silicon, Intel
Key Features
- 100% offline operation with local LLMs
- Download models from Hugging Face (Llama, Gemma, Qwen, GPT-oss)
- Cloud integration with OpenAI, Anthropic, Mistral, Groq
- OpenAI-compatible API server at localhost:1337
- Model Context Protocol (MCP) for agentic capabilities
- Real-time web search integration
- Metal GPU acceleration on Apple Silicon
- Custom AI assistants
- Privacy-first with local-only processing option
