Jan
FreeRun LLMs like Mistral or Llama2 locally and offline on your computer, or connect to remote AI APIs. [#opensource](https://github.com/janhq/jan)
FreeFree tier
About Jan
Jan is an open-source ChatGPT replacement that allows users to run large language models like Mistral, Llama2, and others locally and offline on their computer, or connect to remote AI APIs. Built in public with over 4 million downloads, Jan emphasizes privacy and personal intelligence. It features a memory capability (coming soon) that retains context and preferences across sessions. Users can choose from a variety of open-source models or plug in their favorite online models including ChatGPT, Claude, Gemini, and more. Jan is free, open-source, and supported by an active community on GitHub.
Key Features
Local and offline AI execution
Support for multiple open-source and proprietary models (e.g., Llama, Mistral, ChatGPT, Claude, Gemini, Qwen, DeepSeek)
Memory feature (coming soon) for persistent context and preferences
Open-source with active community (43.7K GitHub stars, 15K+ Discord)
Free and private, no cloud dependency
Cross-platform desktop app (Mac, Windows, Linux)
Pros & Cons
Pros
- Free and open-source with no usage limits
- Runs entirely locally offline, ensuring data privacy
- Supports a wide range of models from both open-source and major providers
- Active development with regular updates (v0.8.4 latest)
- Large and engaged community for support and contributions
Cons
- Memory feature is still in development (coming soon)
- May require technical setup for some users
- Performance limited by local hardware capabilities
- Fewer built-in integrations compared to cloud-based AI assistants
Best For
Personal AI assistant for daily tasksResearch and report generationAnalyzing data and pulling together insightsPrivacy-preserving AI interactionsRunning AI models without internet connectionCustomizable AI assistant for developers and designers
FAQ
What is Jan?
Jan is an open-source ChatGPT replacement that runs local large language models offline or connects to remote AI APIs. It is built for privacy and personalized AI.
Is Jan free?
Yes, Jan is completely free and open-source. There are no charges for downloading or using it.
Can I use Jan offline?
Yes, Jan can run LLMs entirely offline on your computer, with no internet connection required.
What models does Jan support?
Jan supports open-source models like Llama, Mistral, DeepSeek, Gemma, Qwen, and also allows you to plug in proprietary models like ChatGPT, Claude, Gemini, and OpenAI.
Is Jan open source?
Yes, Jan is fully open source. The code is available on GitHub at github.com/janhq/jan.
How do I download Jan?
Jan can be downloaded for Mac from the website jan.ai. It is also available for Windows and Linux via GitHub releases.