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Jan.ai

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Open-Source Personal AI That Answers Only to You

4.7
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Type
Saas
Company
Jan.ai
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About Jan.ai

Jan is an open-source, locally-run AI assistant that serves as a ChatGPT replacement. It allows users to choose from a variety of open-source models or connect to popular online models such as OpenAI's ChatGPT, Anthropic's Claude, Google's Gemini, and Meta's Llama. Jan runs entirely on-device, ensuring privacy and offline capability. The platform emphasizes personal intelligence that answers only to the user, with a persistent memory feature (currently in development) that remembers context and preferences across sessions. Jan is built in public on GitHub with over 43,000 stars and 6 million downloads, and is driven by a vibrant open-source community. It can also act as a general-purpose AI agent, autonomously working on tasks like research, report writing, and analysis over extended periods.

Key Features

Open-source and free to use
Run multiple AI models locally (Llama, Mistral, Gemma, etc.)
Integration with online models (ChatGPT, Claude, Gemini)
Upcoming persistent memory feature for context continuity
Autonomous task execution (research, reports, analysis)
Privacy-first: all processing happens on-device
Built in public with active community contributions

Pros & Cons

Pros
  • Completely free and open-source with a strong community
  • Local processing ensures data privacy and offline access
  • Supports a wide range of open and commercial models
  • Persistent memory (coming soon) for personalized interactions
  • Active development and transparent roadmap on GitHub
Cons
  • Persistent memory feature is not yet released
  • Desktop app currently only available for Mac (other platforms unconfirmed)
  • Requires some technical knowledge to set up and run locally
  • Autonomous agent capabilities are still in early stages

Best For

Personal AI assistant for everyday queries and tasksPrivate research and report generation without cloud dependenceLong-running autonomous analysis and content creationOffline AI assistance for professionals working on sensitive dataOpen-source experimentation and model comparison

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FAQ

Is Jan free to use?
Yes, Jan is completely free and open-source. Users can download and run it locally without any subscription fees.
Can I use my own API keys for online models?
Yes, Jan allows users to plug in favorite online models such as ChatGPT, Claude, Gemini, and others by bringing their own API keys.
Does Jan work offline?
Jan runs locally on your device, so it can work offline when using open-source models downloaded to your machine. Online models require internet access.