head to head · open source
odysseus vs open-spaces
odysseus has 92,145 GitHub stars, 1,411 forks, 1,233 open issues and last shipped yesterday. open-spaces has 3,394 stars, 496 forks, 0 open issues and last shipped yesterday. odysseus leads on adoption by 2,615% (92,145 vs 3,394 stars). odysseus is written in Python under AGPL-3.0; open-spaces is written in JavaScript under MIT. odysseus has attracted 2% as many forks as stars, open-spaces 15%. open-spaces 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
| odysseus | open-spaces | |
|---|---|---|
| GitHub stars | ★ 92K | ★ 3.4K |
| License | AGPL-3.0 | MIT |
| Written in | Python | JavaScript |
| Last push | 2026-10-08 | 2026-10-08 |
| Forks | ⑂ 1.4K | ⑂ 496 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick odysseus if
- You weight community size — 92K 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 open-spaces if
- You want the open-spaces feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches JavaScript
- You evaluated both and open-spaces 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 open-spaces
OpenSpaces is a free, MIT licensed, self hostable AI workspace that brings shared Spaces, editable pages, conversations, and AI tools into one application, aimed at individuals and teams who want an open alternative to ChatGPT Spaces running on their own infrastructure.
read the full open-spaces overview →
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Frequently asked questions
Is odysseus or open-spaces more popular?
odysseus has 92,145 GitHub stars and open-spaces has 3,394. odysseus has the larger community by that measure.
Are odysseus and open-spaces free?
Both are open source. odysseus is licensed under AGPL-3.0 and open-spaces under MIT. Neither carries a licence fee.
What is the difference between odysseus and open-spaces?
odysseus is written in Python and open-spaces in JavaScript. 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 open-spaces?
Choose odysseus if you want the larger community (92,145 stars) or its AGPL-3.0 licence terms. Choose open-spaces if its feature set, stack or MIT licence fits better. Both are self-hostable.