Jan AI
Verified SourceOpen SourceDeveloped by Jan Labs • Category: Open Source AI Models
Jan AI is a desktop application that turns your laptop or desktop computer into an AI supercomputer. It allows you to download, run, and chat with open-source foundation models (DeepSeek-R1, Meta Llama 3.3, Mistral, Gemma) locally on your own hardware without paying any monthly subscriptions or sending private data to cloud servers.
What is Jan AI Most Used For?
AI-Powered Workflow Automation & Productivity Optimization
Engineered for seamless digital efficiency and rapid execution.
What Is Jan AI & How Can You Use It?
Jan AI is a free program you install on your PC or Mac to chat with AI completely offline. No subscription, no internet required, and 100% private.
Private conversations, confidential document analysis, offline code generation, and custom AI assistant profiles.
100% free and open-source forever; runs entirely on your device with no hidden fees.
Who Can Benefit from Jan AI?
Study with an AI tutor on your laptop even without Wi-Fi or mobile data.
Demonstrate how neural weights and local inference engines work without cloud dependencies.
Analyze sensitive financial, legal, and patient records with zero risk of cloud data leaks.
Test open-source model weights locally with a built-in local OpenAI-compatible API server on localhost:1337.
What Can You Do With Jan AI?
Run DeepSeek-R1 Locally Without an Internet Connection
Download Jan AI, search for DeepSeek-R1 distilled models, and chat with zero cloud lag.
Summarize this confidential agreement and explain the key risks.
Main Capabilities
- Runs DeepSeek-R1, Llama 3.3, Mistral NeMo, and Phi-3 locally on Mac, Windows, and Linux
- Local OpenAI-compatible REST server (drop-in replacement for OpenAI API endpoints)
- Zero telemetry and 100% offline air-gapped security
- One-click model downloading directly inside the application
Important Features & Modes
No monthly subscriptions, credit cards, or rate limits.
Optimized for Apple Silicon Metal, NVIDIA CUDA, and Vulkan GPU acceleration.
Use local models inside Cursor, Continue, or custom code via localhost:1337.
Key Strengths
- •Completely free and open-source forever
- •Works 100% offline with zero cloud data tracking
- •Clean modern interface identical to ChatGPT
Limitations & Considerations
- •Requires a computer with at least 8GB to 16GB of RAM to run large models smoothly
Step-by-step guide
How to use Jan AI
A quick beginner’s guide — from sign-up to your first useful result.
- 1
Open Jan AI from the official source
Go to jan.ai — you can use it as a desktop app (macOS, Windows, Linux). Install apps only from the official website or your phone’s official app store to avoid fake copies.
- 2
Create a free account
Sign up to start on the free plan. 100% free forever under the AGPLv3 open-source license.
- 3
Try your first task: Run DeepSeek-R1 Locally Without an Internet Connection
Download Jan AI, search for DeepSeek-R1 distilled models, and chat with zero cloud lag. Example prompt: “Summarize this confidential agreement and explain the key risks.”
- 4
Explore the key features
Once the basics work, try 100% Free & Open Source, Hardware Acceleration, Local API Server. No monthly subscriptions, credit cards, or rate limits.
- 5
Review the output and refine
Check facts, numbers and anything you will publish or submit. Give specific feedback (“shorter”, “more formal”, “fix step 3”) instead of starting over — you will get better results in fewer tries.
Jan AI Plans & Pricing Information
- Unlimited offline chats
- Local API server
- All open models
- Full data sovereignty
Technical Specifications & Environment
Top Alternatives to Jan AI
Frequently Asked Questions About Jan AI
Is Jan AI really 100% free?
Yes! Jan AI is completely open source and free to download. There are no paid tiers, subscriptions, or hidden charges.
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