head to head · open source
odysseus vs eliza
odysseus has 87,371 GitHub stars, 907 forks, 1,233 open issues and last shipped 2 days ago. eliza has 19,359 stars, 5,744 forks, 1,069 open issues and last shipped yesterday. odysseus leads on adoption by 351% (87,371 vs 19,359 stars). odysseus is written in Python under AGPL-3.0; eliza is written in TypeScript under MIT. odysseus has attracted 1% as many forks as stars, eliza 30%. eliza 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 | eliza | |
|---|---|---|
| GitHub stars | ★ 87K | ★ 19K |
| License | AGPL-3.0 | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-09-17 | 2026-09-18 |
| Forks | ⑂ 907 | ⑂ 5.7K |
| 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 eliza if
- You want the eliza feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and eliza 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 eliza
elizaOS is an open source, MIT licensed TypeScript framework and product stack for autonomous AI agents, built for developers who want to run or extend their own agent runtime and for end users who want a personal agent app on web, desktop, and mobile.
read the full eliza overview →
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Frequently asked questions
Is odysseus or eliza more popular?
odysseus has 87,371 GitHub stars and eliza has 19,359. odysseus has the larger community by that measure.
Are odysseus and eliza free?
Both are open source. odysseus is licensed under AGPL-3.0 and eliza under MIT. Neither carries a licence fee.
What is the difference between odysseus and eliza?
odysseus is written in Python and eliza 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 eliza?
Choose odysseus if you want the larger community (87,371 stars) or its AGPL-3.0 licence terms. Choose eliza if its feature set, stack or MIT licence fits better. Both are self-hostable.