head to head · open source
GPT4All vs OpenLIT
GPT4All has 77,399 GitHub stars, 8,291 forks, 771 open issues and last shipped 1.3 years ago. OpenLIT has 2,770 stars, 388 forks, 60 open issues and last shipped yesterday. GPT4All leads on adoption by 2,694% (77,399 vs 2,770 stars). GPT4All is written in C++ under MIT; OpenLIT is written in TypeScript under Apache-2.0. GPT4All has attracted 11% as many forks as stars, OpenLIT 14%. OpenLIT 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 | OpenLIT | |
|---|---|---|
| GitHub stars | ★ 77K | ★ 2.8K |
| License | MIT | Apache-2.0 |
| Written in | C++ | TypeScript |
| Last push | 2025-05-27 | 2026-09-17 |
| Forks | ⑂ 8.3K | ⑂ 388 |
| 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 OpenLIT if
- You want the OpenLIT 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 OpenLIT 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 OpenLIT
OpenLIT is an open source, OpenTelemetry native observability and evaluation platform for AI applications, AI agents and coding agents, built for engineers who run LLM backed systems and need to see what those systems actually did.
read the full OpenLIT overview →
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Frequently asked questions
Is GPT4All or OpenLIT more popular?
GPT4All has 77,399 GitHub stars and OpenLIT has 2,770. GPT4All has the larger community by that measure.
Are GPT4All and OpenLIT free?
Both are open source. GPT4All is licensed under MIT and OpenLIT under Apache-2.0. Neither carries a licence fee.
What is the difference between GPT4All and OpenLIT ?
GPT4All is written in C++ and OpenLIT 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 OpenLIT ?
Choose GPT4All if you want the larger community (77,399 stars) or its MIT licence terms. Choose OpenLIT if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.