head to head · open source
odysseus vs ChatUI
odysseus has 94,935 GitHub stars, 1,862 forks, 1,233 open issues and last shipped yesterday. ChatUI has 4,462 stars, 426 forks, 53 open issues and last shipped 22 days ago. odysseus leads on adoption by 2,028% (94,935 vs 4,462 stars). odysseus is written in Python under AGPL-3.0; ChatUI is written in TypeScript under MIT. odysseus has attracted 2% as many forks as stars, ChatUI 10%. 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 | ChatUI | |
|---|---|---|
| GitHub stars | ★ 95K | ★ 4.5K |
| License | AGPL-3.0 | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-11-02 | 2026-10-12 |
| Forks | ⑂ 1.9K | ⑂ 426 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick odysseus if
- You weight community size — 95K 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 ChatUI if
- You want the ChatUI feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and ChatUI fits your workflow better
About odysseus
A self hosted AI workspace for chat, agents, research, documents, email, notes, calendar, and local model workflows. Quick Start · Setup Guide · Contributing · Roadmap Quick Start dev is the default branch and gets the newest changes first. Use main if you want the more curated branch. Open when the containers are healthy. The first admin password is printed in docker compose logs odysseus . Native installs, GPU notes, Windows/macOS instructions, HTTPS, and configuration live in the setup guide. Features Chat + Agents — local/API models, tools, MCP, files, shell, skills, and memory. Cookbook — hardware aware…
read the full odysseus overview →
About ChatUI
The UI design language and React library for Conversational UI Website： English 简体中文 Features 😎 Best Practices : The best practice for chat interaction based on our experience of Alime Chatbot 🛡 TypeScript : Written in TypeScript with predictable static types 📱 Responsive : Responsive design to adapt automatically to whatever device ♿ Accessibility : Accessibility support and get the certification from Accessibility Research Association 🎨 Theming : Powerful theme customization in every detail 🌍 International : Internationalization support for dozens of languages Environment Support Modern browsers (support…
read the full ChatUI overview →
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Frequently asked questions
Is odysseus or ChatUI more popular?
odysseus has 94,935 GitHub stars and ChatUI has 4,462. odysseus has the larger community by that measure.
Are odysseus and ChatUI free?
Both are open source. odysseus is licensed under AGPL-3.0 and ChatUI under MIT. Neither carries a licence fee.
What is the difference between odysseus and ChatUI?
odysseus is written in Python and ChatUI 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 ChatUI?
Choose odysseus if you want the larger community (94,935 stars) or its AGPL-3.0 licence terms. Choose ChatUI if its feature set, stack or MIT licence fits better. Both are self-hostable.