head to head · open source
odysseus vs catai
odysseus has 87,371 GitHub stars, 907 forks, 1,233 open issues and last shipped 2 days ago. catai has 500 stars, 39 forks, 2 open issues and last shipped 10 months ago. odysseus leads on adoption by 17,374% (87,371 vs 500 stars). odysseus is written in Python under AGPL-3.0; catai is written in TypeScript under MIT. odysseus has attracted 1% as many forks as stars, catai 8%. odysseus 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.
← all 15422 open source comparisons
Side by side
| odysseus | catai | |
|---|---|---|
| GitHub stars | ★ 87K | ★ 500 |
| License | AGPL-3.0 | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-09-17 | 2025-11-16 |
| Forks | ⑂ 907 | ⑂ 39 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick odysseus if
- You weight community size — 87K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick catai if
- You want the catai feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and catai fits your workflow better
About odysseus
Odysseus is a self hosted AI workspace written in Python and released under the AGPL 3.0 or later licence, built for people who want chat, agents, research, documents, email, notes, tasks, and calendar in one deployment on infrastructure they control.
read the full odysseus overview →
About catai
catai is an MIT licensed TypeScript command line tool that runs GGUF language models on your own computer and serves them through a chat interface and a small Node.js API, built for developers who want a private AI assistant without a hosted service.
read the full catai overview →
More in AI & Machine Learning
Related comparisons
More AI Interaction & Interfaces projects
Compare either of these against the rest of the AI Interaction & Interfaces field.
Frequently asked questions
Is odysseus or catai more popular?
odysseus has 87,371 GitHub stars and catai has 500. odysseus has the larger community by that measure.
Are odysseus and catai free?
Both are open source. odysseus is licensed under AGPL-3.0 and catai under MIT. Neither carries a licence fee.
What is the difference between odysseus and catai?
odysseus is written in Python and catai 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, odysseus or catai?
Choose odysseus if you want the larger community (87,371 stars) or its AGPL-3.0 licence terms. Choose catai if its feature set, stack or MIT licence fits better. Both are self-hostable.