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Jan

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Open-source ChatGPT alternative that runs AI models locally on your device with privacy-first offline chat. Jan supports downloadable models and optional cloud model connections.

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How it works / How to use

Open-source ChatGPT alternative that runs AI models locally on your device with privacy-first offline chat. Jan supports downloadable models and optional cloud model connections.

  1. Install or open Jan and download the model weights you plan to run.
  2. Confirm hardware requirements (RAM/VRAM) on the official documentation.
  3. Send a small test prompt locally before connecting external apps.
  4. Keep models updated using the vendor's recommended update channel.

How to prompt

Jan keeps prompts and responses on-device when using local models.

Help me draft interview questions for a senior backend engineer role without sending data to external servers.

Best output tips

  • Match model size to available RAM/VRAM.
  • Pin model versions for reproducible results.
  • Keep downloaded weights in a secure directory.
  • Verify current plans and limits on the official Jan website.

Try this AI

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Product Details

Pricing, features, limits and latest updates

Jan

Open-source ChatGPT alternative that runs AI models locally on your device with privacy-first offline chat. Jan supports downloadable models and optional cloud model connections.

No listed price

Pricing Plans

No listed plans.

Key Features

Chat

chat workflow (jan.ai).

Open Source

open source workflow (jan.ai).

Ideas / Prompt experiences

Share a prompt that worked for you. Username and email are shown with your submission. External links are not allowed.

Example prompt

Offline private chat

Prompt

Help me draft interview questions for a senior backend engineer role without sending data to external servers.

Short explanation

Jan keeps prompts and responses on-device when using local models.

Example prompt

Model comparison locally

Prompt

Compare response quality of two local models on the same summarization task for a internal policy document.

Short explanation

Local side-by-side testing helps pick models for offline workflows.

Share your experience

Required fields are marked. Variation, result, and explanation are optional.

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