head to head · open source
GPT4All vs unbody
GPT4All has 77,401 GitHub stars, 8,291 forks, 771 open issues and last shipped 1.3 years ago. unbody has 524 stars, 47 forks, 3 open issues and last shipped 5 months ago. GPT4All leads on adoption by 14,671% (77,401 vs 524 stars). GPT4All is written in C++ under MIT; unbody is written in TypeScript under Apache-2.0. GPT4All has attracted 11% as many forks as stars, unbody 9%. unbody 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.
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Side by side
| GPT4All | unbody | |
|---|---|---|
| GitHub stars | ★ 77K | ★ 524 |
| License | MIT | Apache-2.0 |
| Written in | C++ | TypeScript |
| Last push | 2025-05-27 | 2026-04-14 |
| Forks | ⑂ 8.3K | ⑂ 47 |
| 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 unbody if
- You want the unbody feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and unbody fits your workflow better
About GPT4All
GPT4All is an MIT licensed C++ chat application and Python client from Nomic that runs large language models privately on everyday desktops and laptops, built for developers and teams who want local inference without API calls, GPUs, or sending data off device.
read the full GPT4All overview →
About unbody
Unbody is an Apache 2.0, TypeScript, modular open source backend for building AI native software that is designed for knowledge rather than static data, and it is aimed at developers and teams that want to self host the ingestion, indexing and retrieval layer behind chat, search and agentic applications.
read the full unbody overview →
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Frequently asked questions
Is GPT4All or unbody more popular?
GPT4All has 77,401 GitHub stars and unbody has 524. GPT4All has the larger community by that measure.
Are GPT4All and unbody free?
Both are open source. GPT4All is licensed under MIT and unbody under Apache-2.0. Neither carries a licence fee.
What is the difference between GPT4All and unbody?
GPT4All is written in C++ and unbody in TypeScript. 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 unbody?
Choose GPT4All if you want the larger community (77,401 stars) or its MIT licence terms. Choose unbody if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.