head to head · open source
odysseus vs Gemini-API
odysseus has 94,935 GitHub stars, 1,862 forks, 1,233 open issues and last shipped yesterday. Gemini-API has 3,781 stars, 593 forks, 37 open issues and last shipped 26 days ago. odysseus leads on adoption by 2,411% (94,935 vs 3,781 stars). odysseus is written in Python under AGPL-3.0; Gemini-API is written in Python under AGPL-3.0. odysseus has attracted 2% as many forks as stars, Gemini-API 16%. 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 | Gemini-API | |
|---|---|---|
| GitHub stars | ★ 95K | ★ 3.8K |
| License | AGPL-3.0 | AGPL-3.0 |
| Written in | Python | Python |
| Last push | 2026-11-02 | 2026-10-08 |
| Forks | ⑂ 1.9K | ⑂ 593 |
| 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 Gemini-API if
- You want the Gemini-API 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 Gemini-API 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 Gemini-API
Gemini API A reverse engineered asynchronous Python wrapper for the Google Gemini web app (formerly Bard). Features Persistent Cookies Automatically refreshes cookies in background. Optimized for always on services. Image Generation Natively supports generating and editing images with natural language. Video & Audio Generation Supports generating videos and audio/music content natively. Deep Research Full deep research workflow with plan creation, status polling, and result retrieval. System Prompt Supports customizing the model's system prompt with Gemini Gems. Extension Support Supports generating content with…
read the full Gemini-API overview →
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Frequently asked questions
Is odysseus or Gemini-API more popular?
odysseus has 94,935 GitHub stars and Gemini-API has 3,781. odysseus has the larger community by that measure.
Are odysseus and Gemini-API free?
Both are open source. odysseus is licensed under AGPL-3.0 and Gemini-API under AGPL-3.0. Neither carries a licence fee.
What is the difference between odysseus and Gemini-API?
odysseus is written in Python and Gemini-API 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 Gemini-API?
Choose odysseus if you want the larger community (94,935 stars) or its AGPL-3.0 licence terms. Choose Gemini-API if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.