exo vs 
Cortex
exo vs Cortex compared for 2026 — features, license, ease of use, performance and which one to choose. Run big models across your everyday devices vs Ollama-style runtime from the Jan team.
Updated regularly · curated by OpenSourceAI.tech
exo vs Cortex at a glance
| Spec | exo | Cortex |
|---|---|---|
| Category | Run LLMs locally | Run LLMs locally |
| Type | Distributed home cluster | Local runtime (CLI) |
| License | GPL-3.0 | Apache-2.0 |
| Runs locally | Yes | Yes |
| Primary language | Python | C++ |
| Ease of use | Intermediate | Beginner |
| Best for | running models too large for any single machine at home | a clean Ollama alternative with swappable engines |
| GitHub stars | — | — |
Feature comparison
| Feature | exo | Cortex |
|---|---|---|
| Runs locally | ✓ | ✓ |
| Graphical UI | ✗ | ✗ |
| OpenAI-compatible API | ✓ | ✓ |
| Docker | ✗ | ✓ |
| GPU acceleration | ✓ | ✓ |
| Built-in model library | ✓ | ✓ |
How exo and Cortex score
| Criterion | exo | Cortex |
|---|---|---|
| Popularity | n/a | n/a |
| Maintenance | n/a | n/a |
| Ease of use | 3.5 | 5.0 |
| Privacy | 5.0 | 5.0 |
| License freedom | 3.5 | 5.0 |
Scores are computed automatically from public signals — GitHub stars (popularity), recent commit activity (maintenance), license type (freedom), local-first design (privacy) and onboarding complexity (ease of use). Indicative, not a verdict.
What each one is
exo
exo turns the devices you already own — Macs, PCs, phones — into a self-organizing AI cluster, splitting large models across them with automatic peer discovery.
- Aggregates the memory of all your devices automatically
- ChatGPT-compatible API on your own cluster
- No expensive GPU server needed for large models
Cortex
Cortex is a local AI engine with a simple CLI, an OpenAI-compatible API and multiple backends (llama.cpp, TensorRT-LLM), designed to power the Jan desktop app or run standalone.
- Multiple inference engines behind one CLI
- OpenAI-compatible server out of the box
- Backed by the team behind the Jan desktop app
Key differences
exo is distributed home cluster, while Cortex is local runtime (CLI). Their licenses differ (GPL-3.0 vs Apache-2.0), which matters if you ship a commercial product. exo leans more intermediate-friendly, whereas Cortex is more suited to beginner users. In short, exo fits running models too large for any single machine at home, and Cortex fits a clean Ollama alternative with swappable engines.
Which should you choose?
Choose exo for running models too large for any single machine at home. Choose Cortex for a clean Ollama alternative with swappable engines.
There is rarely one winner — many setups use both. The right pick depends on your hardware, your team's skills, and whether you value simplicity or control.
Frequently asked questions
Is exo or Cortex easier to use?
Cortex is generally the easier of the two to get started with, while exo rewards more setup with more control.
Are exo and Cortex free?
exo is free and open source (GPL-3.0), and Cortex is free and open source (Apache-2.0). Neither charges for the core software.
Can I run exo and Cortex locally?
exo: yes · Cortex: yes. Both can be used without sending your data to a third-party cloud where their setup allows.
exo vs Cortex — which should I pick in 2026?
Choose exo for running models too large for any single machine at home. Choose Cortex for a clean Ollama alternative with swappable engines.
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