head to head · open source
odysseus vs LibreChat
odysseus has 87,357 GitHub stars, 903 forks, 1,233 open issues and last shipped 2 days ago. LibreChat has 44,255 stars, 9,097 forks, 732 open issues and last shipped yesterday. odysseus leads on adoption by 97% (87,357 vs 44,255 stars). odysseus is written in Python under AGPL-3.0; LibreChat is written in TypeScript under MIT. odysseus has attracted 1% as many forks as stars, LibreChat 21%. LibreChat 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.
← all 13541 open source comparisons
Side by side
| odysseus | LibreChat | |
|---|---|---|
| GitHub stars | ★ 87K | ★ 44K |
| License | AGPL-3.0 | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-09-17 | 2026-09-18 |
| Forks | ⑂ 903 | ⑂ 9.1K |
| 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 LibreChat if
- You want the LibreChat feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and LibreChat 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 LibreChat
LibreChat is an open source, self hostable chat interface designed as an enhanced ChatGPT clone. It unifies access to multiple AI models—including OpenAI, Anthropic, Google Gemini, DeepSeek, Mistral, AWS Bedrock, Azure OpenAI, and others—within a single web application. Built in TypeScript, it supports real time streaming, multi model switching, and advanced agent workflows while providing features like message search, artifacts, code interpreter, and secure multi user authentication.
read the full LibreChat overview →
More in AI & Machine Learning
Related comparisons
More AI Interaction & Interfaces projects
Compare either of these against the rest of the AI Interaction & Interfaces field.
Frequently asked questions
Is odysseus or LibreChat more popular?
odysseus has 87,357 GitHub stars and LibreChat has 44,255. odysseus has the larger community by that measure.
Are odysseus and LibreChat free?
Both are open source. odysseus is licensed under AGPL-3.0 and LibreChat under MIT. Neither carries a licence fee.
What is the difference between odysseus and LibreChat?
odysseus is written in Python and LibreChat 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 LibreChat?
Choose odysseus if you want the larger community (87,357 stars) or its AGPL-3.0 licence terms. Choose LibreChat if its feature set, stack or MIT licence fits better. Both are self-hostable.