head to head · open source
odysseus vs Pearl
odysseus has 87,371 GitHub stars, 907 forks, 1,233 open issues and last shipped 2 days ago. Pearl has 1,093 stars, 181 forks, 40 open issues and last shipped 5 months ago. odysseus leads on adoption by 7,894% (87,371 vs 1,093 stars). odysseus is written in Python under AGPL-3.0; Pearl is written in TypeScript under Apache-2.0. odysseus has attracted 1% as many forks as stars, Pearl 17%. 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 | Pearl | |
|---|---|---|
| GitHub stars | ★ 87K | ★ 1.1K |
| License | AGPL-3.0 | Apache-2.0 |
| Written in | Python | TypeScript |
| Last push | 2026-09-17 | 2026-04-30 |
| Forks | ⑂ 907 | ⑂ 181 |
| 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 Pearl if
- You want the Pearl feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and Pearl 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 Pearl
Bubble Lab is an open core, TypeScript workflow engine that powers the Slack native Bubble Lab platform and its AI assistant Pearl, and it is aimed at teams that want operational work automated inside Slack as well as at developers and organisations that want to host that same execution engine on their own infrastructure.
read the full Pearl overview →
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Frequently asked questions
Is odysseus or Pearl more popular?
odysseus has 87,371 GitHub stars and Pearl has 1,093. odysseus has the larger community by that measure.
Are odysseus and Pearl free?
Both are open source. odysseus is licensed under AGPL-3.0 and Pearl under Apache-2.0. Neither carries a licence fee.
What is the difference between odysseus and Pearl?
odysseus is written in Python and Pearl 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 Pearl?
Choose odysseus if you want the larger community (87,371 stars) or its AGPL-3.0 licence terms. Choose Pearl if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.