head to head · open source
GPT4All vs Jan
GPT4All has 77,347 GitHub stars, 8,261 forks, 771 open issues and last shipped 1.4 years ago. Jan has 45,332 stars, 3,133 forks, 521 open issues and last shipped yesterday. GPT4All leads on adoption by 71% (77,347 vs 45,332 stars). GPT4All is written in C++ under MIT; Jan is written in Rust under a custom or non-standard licence. GPT4All has attracted 11% as many forks as stars, Jan 7%. Jan was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
← all 20902 open source comparisons
Side by side
| GPT4All | Jan | |
|---|---|---|
| GitHub stars | ★ 77K | ★ 45K |
| License | MIT | Custom / other |
| Written in | C++ | Rust |
| Last push | 2025-05-27 | 2026-11-02 |
| Forks | ⑂ 8.3K | ⑂ 3.1K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick GPT4All if
- You weight community size — 77K stars and counting
- You want the MIT license terms
- Your stack matches C++
- You value the larger contributor base for long-term maintenance
pick Jan if
- You want the Jan feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches Rust
- You evaluated both and Jan fits your workflow better
About GPT4All
GPT4All Now with support for DeepSeek R1 Distillations Website • Documentation • Discord • YouTube Tutorial GPT4All runs large language models (LLMs) privately on everyday desktops & laptops. No API calls or GPUs required you can just download the application and get started . Read about what's new in our blog . Subscribe to the newsletter GPT4All is made possible by our compute partner Paperspace . Download Links — Windows Installer — — Windows ARM Installer — — macOS Installer — — Ubuntu Installer — The Windows and Linux builds require Intel Core…
read the full GPT4All overview →
About Jan
Jan Open source ChatGPT replacement English · 中文 · 日本語 Getting Started Community Changelog Bug reports Jan is bringing the best of open source AI in an easy to use product. Download and run LLMs with full control and privacy . Installation The easiest way to get started is by downloading one of the following versions for your respective operating system: Platform Download Windows jan.exe macOS jan.dmg Linux (deb) jan.deb Linux (AppImage) jan.AppImage Linux (Arm64) How to Download from jan.ai or GitHub Releases. Features Local AI Models : Download and run LLMs (Llama, Gemma, Qwen, GPT oss etc.) from HuggingFace…
More in AI & Machine Learning
Related comparisons
More Machine Learning Infrastructure projects
Compare either of these against the rest of the Machine Learning Infrastructure field.
Frequently asked questions
Is GPT4All or Jan more popular?
GPT4All has 77,347 GitHub stars and Jan has 45,332. GPT4All has the larger community by that measure.
Are GPT4All and Jan free?
Both are open source. GPT4All is licensed under MIT, and Jan has no licence declared in this registry. Both are free to self-host.
What is the difference between GPT4All and Jan?
GPT4All is written in C++ and Jan in Rust. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, GPT4All or Jan?
Choose GPT4All if you want the larger community (77,347 stars) or its MIT licence terms. Choose Jan if its feature set, stack or Custom / other licence fits better. Both are self-hostable.