GPT4All vs Jan
A side-by-side comparison of two self-hosted local llm runners options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | GPT4All | Jan |
|---|---|---|
| Deploy effort | Read-the-docs project | Read-the-docs project |
| Health score | 41 · Fair | 99 · Excellent |
| Category | Local LLM Runners | Local LLM Runners |
| License | MIT | AGPL-3.0 |
| Language | C++ | Rust |
| Setup difficulty | Easy | Easy |
| Min. RAM | 8,192 MB | 8,192 MB |
| Deployment | binary, bare-metal | binary, bare-metal |
| GitHub stars | ★ 77,387 | ★ 44,630 |
| First released | 2023 | 2023 |
| Replaces | ChatGPT | ChatGPT |
What are GPT4All and Jan?
GPT4All
GPT4All is a desktop ecosystem for running open large language models locally and privately. It offers a chat client with document retrieval over local files and bindings for several programming languages.
- Runs on CPU
- Local document chat
- Cross-platform desktop app
- Language bindings
Jan
Jan is a desktop application that runs large language models fully offline on your computer. It provides a clean chat interface, a local API server, and the ability to connect to remote providers when desired.
- Fully offline by default
- Built-in local API server
- Model hub browser
- Privacy focused
GPT4All vs Jan: key differences
GPT4All is written in C++, while Jan is built with Rust. Licensing differs — MIT for GPT4All versus AGPL-3.0 for Jan.
Why pick each one
Choose GPT4All if…
- Very easy setup
- Runs fully offline
- Local document chat
Watch out for
- Limited to smaller models
- Performance depends on hardware
Choose Jan if…
- Polished desktop interface
- Fully offline chat
- Local API server included
Watch out for
- Single-user desktop focus
- Large models need RAM
Frequently asked questions
Is GPT4All or Jan better?
Neither is universally better. GPT4All has the larger community; both share a easy setup difficulty, so the decision comes down to features and licensing.
Are GPT4All and Jan free and open-source?
Yes. GPT4All is licensed under MIT and Jan under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run GPT4All and Jan with Docker?
GPT4All: check the project docs for container support. Jan: check the project docs for container support.