Jan is an open-source, self-hosted ChatGPT alternative that can run 100% offline on your computer. Jan offers customizable AI assistants, global hotkeys, and inline AI features to enhance your productivity. It supports running an OpenAI-equivalent API server on your local machine, allowing it to integrate with compatible applications. All your conversation, preference, and model usage data is kept on your computer, securely, exportable, and can be deleted at any time.