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GPT4All vs Jan

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors.

The short answer

Free plan
Both are free to use
Public API
Both have one
Best fit
GPT4All: Privacy-focused users who want chat and document Q&A with no data leaving the machine · Jan: Privacy-focused users who want an offline ChatGPT-style app
Trust score
About even — GPT4All 89, Jan 91
Status
Both up at our last check (Oct 2, 2026)

From our own records as of each tool's last check. Anything we have not confirmed is left out rather than guessed. How we verify

GPT4AllFree desktop app that runs open language models privately on your own computer, with local document chat.JanOpen-source desktop chat app that runs open models offline or connects to cloud providers, plus a terminal coding agent.

Side by side

FactGPT4AllJan
CategoryGeneral-purpose AI ChatbotsModel Hosting & Inference
Pricing modelFreeFree
Public APIYesYes
Trust score89 / 10091 / 100
PlatformsmacOS, Windows, Linux, APImacOS, Windows, Linux, API
CompanyNomicMenlo Research Pte. Ltd.
Launched20232023
Last verifiedOct 2, 2026Oct 2, 2026

What our research says

GPT4All

A friendly way to try local models without the command line, with LocalDocs as its standout feature for private document chat. It is a reasonable choice for casual offline use, but the project looks quiet: the last tagged release dates from early 2025 and Nomic has moved its commercial focus elsewhere. Pick it for simplicity, not for the latest models and features.

Pros

  • Free, MIT-licensed and fully local
  • Runs on Windows, macOS and Linux, including without a GPU
  • LocalDocs chats with your own files using Nomic's embedding models
  • Python SDK and local API server available

Cons

  • Latest tagged release is from February 2025, so development looks slow
  • Quality depends on the small quantized models a laptop can handle
  • Nomic's commercial attention has shifted to its construction-industry platform

Jan

A friendly, fully free way to chat with open models offline and keep cloud providers one click away in the same app. It suits people who want privacy and zero subscription cost more than the polish of a hosted assistant. The new Jan Agent is explicitly preview quality, so do not rely on it for daily coding yet.

Pros

  • Free and Apache 2.0 licensed, with active public development
  • Local models run offline with no account or API key
  • Works with OpenAI, Anthropic, Google, Groq and compatible endpoints
  • Built-in local API server and MCP support

Cons

  • Local model quality and speed depend entirely on your hardware
  • The memory feature is shown as coming soon
  • Jan Agent is in preview with expected rough edges

Which one fits

Choose GPT4All if you need

  • Privacy-focused users who want chat and document Q&A with no data leaving the machine
  • Beginners trying open models on a laptop without a GPU
  • Developers who want a simple local API server or Python SDK

Choose Jan if you need

  • Privacy-focused users who want an offline ChatGPT-style app
  • Developers who want local and cloud models behind one interface and a local API

GPT4All vs Jan: the questions people ask

Does GPT4All or Jan have a free tier?

Both: GPT4All is free to use, and Jan is free to use.

Which has a public API, GPT4All or Jan?

Both ship a public API, so either can be built on; the fact table above shows the platforms each one runs on.

More comparisons

All GPT4All alternatives →All Jan alternatives →Browse all General-purpose AI Chatbots →