Overview
Jan 0.7.8 is now live! — Agents, CLI, and more. See the full changelog.
Jan is an open-source replacement for Claude and ChatGPT. It comes with built-in foundation models and an application ecosystem that runs entirely on your hardware — keeping your data private and giving you full ownership over your AI.
Get Started
Install Jan on macOS, Windows, or Linux and chat with AI in minutes — no account needed.
Jan ships with foundation models built for reasoning, agents, and deep research — ready to run on your computer.
Autonomous AI agents that run on your hardware — read files, manage calendars, and take actions via WhatsApp, Discord, or Slack.
Connect Jan with Claude Code, OpenClaw, MCP servers, and more.
Ecosystem
macOS, Windows, and Linux apps with full offline support.
Jan in the browser — a direct alternative to chatgpt.com.
Run a local OpenAI-compatible API server on your machine.
Optimized for reasoning, agents, and deep research — built to match frontier AI capabilities and small enough to run on your personal computer.
Serve local models and launch autonomous agents from your terminal using Jan's local AI.
The infrastructure layer for building AI products on top of Jan. (Coming Soon)
Community
Join the Jan community — get help, share your setup, and talk local AI.
Ask questions, share setups, and discuss local AI on r/askjan.
Principles
- Open source (opens in a new tab): Apache 2.0 (opens in a new tab) licensed, built in public.
- No vendor lock-in (opens in a new tab): Switch freely between local and frontier models.
- Right to Repair (opens in a new tab): Inspect, audit, and modify your AI stack.
Acknowledgements
Jan exists because we've borrowed, learned, and built on the work of others.
- llama.cpp (opens in a new tab) and GGML (opens in a new tab) for efficient inference
- r/LocalLLaMA (opens in a new tab) for ideas, feedback, and debate
- Model Context Protocol (opens in a new tab) for MCP integrations
- The open-source community for contributions, bug reports, and improvements