AIChat vs PrivateGPT
A side-by-side comparison of two self-hosted self-hosted ai options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | AIChat | PrivateGPT |
|---|---|---|
| Deploy effort | Read-the-docs project | Under-an-hour setup |
| Health score | 65 · Good | 100 · Excellent |
| Category | Self-Hosted AI | Self-Hosted AI |
| License | MIT | Apache-2.0 |
| Language | Rust | Python |
| Setup difficulty | Easy | Medium |
| Min. RAM | 256 MB | 8,192 MB |
| Deployment | binary, source | docker, bare-metal, source |
| GitHub stars | ★ 10,462 | ★ 57,526 |
| First released | 2023 | 2023 |
| Replaces | ChatGPT | ChatGPT |
What are AIChat and PrivateGPT?
AIChat
AIChat is a command-line tool for interacting with large language models that includes a shell assistant, chat REPL, and a built-in API server. It works with many providers and can serve locally hosted models.
- Shell assistant mode
- Chat REPL interface
- Built-in API server
- RAG and function calling
PrivateGPT
PrivateGPT is a production-ready AI project that lets you ask questions about documents using LLMs entirely offline. It provides an API following the OpenAI standard and a Gradio UI for local RAG.
- Fully offline RAG
- OpenAI-compatible API
- Document ingestion
- No data leaves the host
AIChat vs PrivateGPT: key differences
AIChat is written in Rust, while PrivateGPT is built with Python. Licensing differs — MIT for AIChat versus Apache-2.0 for PrivateGPT. AIChat is the lighter option, starting around 256 MB of RAM against 8,192 MB for PrivateGPT. PrivateGPT has the considerably larger community, at 57,526 GitHub stars versus 10,462. PrivateGPT lists first-class Docker deployment; AIChat does not.
Why pick each one
Choose AIChat if…
- Released under the MIT license
- Easy to set up — beginner-friendly
- Mature project with 10.5k GitHub stars
- Written in Rust
Choose PrivateGPT if…
- Fully offline capable
- OpenAI-compatible API
- Privacy-focused design
Watch out for
- GPU recommended
- Setup can be fiddly
Frequently asked questions
Is AIChat or PrivateGPT better?
Neither is universally better. PrivateGPT has the larger community, while AIChat is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are AIChat and PrivateGPT free and open-source?
Yes. AIChat is licensed under MIT and PrivateGPT under Apache-2.0. Both can be self-hosted at no software cost.
Can I run AIChat and PrivateGPT with Docker?
AIChat: check the project docs for container support. PrivateGPT: yes.
Which is lighter on resources, AIChat or PrivateGPT?
AIChat has the smaller minimum footprint at 256 MB of RAM, compared to about 8,192 MB for PrivateGPT. Real-world usage depends on library size, user count, and enabled features.