head to head · open source
odysseus vs AstrBot
odysseus has 87,357 GitHub stars, 903 forks, 1,233 open issues and last shipped 2 days ago. AstrBot has 40,639 stars, 2,927 forks, 1,516 open issues and last shipped 2 days ago. odysseus leads on adoption by 115% (87,357 vs 40,639 stars). odysseus is written in Python under AGPL-3.0; AstrBot is written in Python under AGPL-3.0. odysseus has attracted 1% as many forks as stars, AstrBot 7%. 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.
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Side by side
| odysseus | AstrBot | |
|---|---|---|
| GitHub stars | ★ 87K | ★ 41K |
| License | AGPL-3.0 | AGPL-3.0 |
| Written in | Python | Python |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 903 | ⑂ 2.9K |
| 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 AstrBot if
- You want the AstrBot feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Python
- You evaluated both and AstrBot 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 AstrBot
AstrBot is an open source all in one Agent chatbot platform written in Python and licensed under AGPL 3.0. It integrates with mainstream instant messaging applications and provides conversational AI infrastructure for individuals, developers, and teams. The project lives in the AI and machine learning ecosystem, specifically the AI interaction and interfaces category, and it has been developed over roughly four years. Its repository carries 40,504 stars and 2,915 forks, and its documented homepage is astrbot.app. Topics attached to the project include agent, ai, chatbot, chatgpt, discord, docker, gemini, gpt, lla…
read the full AstrBot overview →
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Frequently asked questions
Is odysseus or AstrBot more popular?
odysseus has 87,357 GitHub stars and AstrBot has 40,639. odysseus has the larger community by that measure.
Are odysseus and AstrBot free?
Both are open source. odysseus is licensed under AGPL-3.0 and AstrBot under AGPL-3.0. Neither carries a licence fee.
What is the difference between odysseus and AstrBot?
odysseus is written in Python and AstrBot in Python. 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 AstrBot?
Choose odysseus if you want the larger community (87,357 stars) or its AGPL-3.0 licence terms. Choose AstrBot if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.