exo vs One API
A side-by-side comparison of two self-hosted local llm runners options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | exo | One API |
|---|---|---|
| Deploy effort | Read-the-docs project | Under-an-hour setup |
| Health score | 98 · Excellent | 61 · Good |
| Category | Local LLM Runners | Local LLM Runners |
| License | GPL-3.0 | MIT |
| Language | Python | Go |
| Setup difficulty | Medium | Medium |
| Min. RAM | 8,192 MB | 256 MB |
| Deployment | source | docker, binary |
| GitHub stars | ★ 47,624 | ★ 37,009 |
| First released | 2024 | 2023 |
| Replaces | OpenAI API | OpenAI API, OpenRouter |
What are exo and One API?
exo
exo is an open-source project that unifies multiple everyday devices into a single AI compute cluster for running large language models. It splits models across phones, laptops, and desktops and exposes an OpenAI-compatible API.
- Distributes models across devices
- OpenAI-compatible API
- Automatic device discovery
- No master node required
One API
One API is an LLM API management and distribution system that exposes a single OpenAI-compatible endpoint while routing to many upstream providers. It adds key management, channel load balancing, usage tracking and multi-user billing.
- Unified OpenAI-compatible API
- Channel load balancing
- Token and quota management
- Multi-user support
exo vs One API: key differences
Exo is written in Python, while One API is built with Go. Licensing differs — GPL-3.0 for exo versus MIT for One API. One API is the lighter option, starting around 256 MB of RAM against 8,192 MB for exo. One API lists first-class Docker deployment; exo does not.
Why pick each one
Choose exo if…
- Pools everyday devices
- OpenAI-compatible API
- Runs fully offline
Watch out for
- Experimental and evolving
- Network limits performance
Choose One API if…
- Single OpenAI-compatible endpoint
- Built-in usage billing
- Easy Docker deployment
Watch out for
- Documentation mostly Chinese
- Scaling needs external database
Frequently asked questions
Is exo or One API better?
Neither is universally better. exo has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are exo and One API free and open-source?
Yes. exo is licensed under GPL-3.0 and One API under MIT. Both can be self-hosted at no software cost.
Can I run exo and One API with Docker?
exo: check the project docs for container support. One API: yes.
Which is lighter on resources, exo or One API?
One API has the smaller minimum footprint at 256 MB of RAM, compared to about 8,192 MB for exo. Real-world usage depends on library size, user count, and enabled features.