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ChatGPT vs Jan

ChatGPT: OpenAI's all-round assistant for writing, analysis, images and voice. Jan: An open-source desktop app for running AI chat models fully offline on your computer. Here is how they compare on features, pricing, platforms, pros and cons.

Quick verdict

ChatGPT

Best for: Anyone who wants one assistant for everyday writing, research and brainstorming.

Stands out for: Handles a very wide range of tasks; Apps on most devices.

Jan

Best for: People who want a private, offline ChatGPT-style app.

Stands out for: Free and open source; Keeps data on your device.

Side-by-side comparison

Comparison of ChatGPT, Jan
Visit chatgpt.com (opens in a new tab)Visit jan.ai (opens in a new tab)
What it isOpenAI's all-round assistant for writing, analysis, images and voice.An open-source desktop app for running AI chat models fully offline on your computer.
Pricing
Free + Paid
Open source
Free to useYesYes
CategoryAI Chatbots & AssistantsAI Chatbots & Assistants
Editor rank#1 in category#15 in category
Made byOpenAIMenlo Research
Best forAnyone who wants one assistant for everyday writing, research and brainstorming.People who want a private, offline ChatGPT-style app.
Key features
  • Chat, voice and image generation in one app
  • Reads uploaded files, PDFs and spreadsheets
  • Custom GPTs and project folders for repeat work
  • Runs open models offline
  • Optional cloud model connections
  • Local API server for other apps
Pros
  • Handles a very wide range of tasks
  • Apps on most devices
  • Generous free tier
  • Free and open source
  • Keeps data on your device
Cons
  • Can state wrong facts confidently
  • Best models and higher limits need a paid plan
  • Speed depends on your computer's hardware
Use it to
  • Draft emails, essays and reports from a short brief
  • Analyse an uploaded spreadsheet or PDF
  • Talk through a problem using voice mode
  • Chat with a model without an internet connection
  • Test different open models side by side
  • Serve a local model to your own scripts
Web app
iPhone & iPad
Android
Windows
Mac
Linux
API

ChatGPT vs Jan: questions

Is ChatGPT better than Jan?

Neither wins for everyone. Our editors rank ChatGPT slightly higher overall in AI Chatbots & Assistants, but Jan can be the better fit: People who want a private, offline ChatGPT-style app.

Which is free, ChatGPT or Jan?

Both can be used without paying: ChatGPT is free + paid and Jan is open source. Paid plans add more usage or features.

Can I use ChatGPT and Jan together?

Yes. Many people keep both and pick per task, for example draft emails, essays and reports from a short brief with ChatGPT, and chat with a model without an internet connection with Jan.

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