head to head · open source
odysseus vs sponge
odysseus has 94,935 GitHub stars, 1,862 forks, 1,233 open issues and last shipped yesterday. sponge has 2,869 stars, 270 forks, 42 open issues and last shipped 11 months ago. odysseus leads on adoption by 3,209% (94,935 vs 2,869 stars). odysseus is written in Python under AGPL-3.0; sponge is written in Go under MIT. odysseus has attracted 2% as many forks as stars, sponge 9%. 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 | sponge | |
|---|---|---|
| GitHub stars | ★ 95K | ★ 2.9K |
| License | AGPL-3.0 | MIT |
| Written in | Python | Go |
| Last push | 2026-11-02 | 2025-12-15 |
| Forks | ⑂ 1.9K | ⑂ 270 |
| 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 sponge if
- You want the sponge feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and sponge 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 sponge
English 简体中文 Introduction Sponge is a powerful and easy to use Go development framework . Built on the core philosophy of "Definition is Code" , it aims to reshape the backend development experience through automatic generation technology, unleashing productivity and boosting development efficiency. Sponge deeply integrates a code generation engine , Gin (Web framework) , and gRPC (microservice framework) , covering the full software lifecycle from project generation, development, and testing to API documentation and deployment. Core Features: Definition Driven Development : Automatically parses SQL, Protobuf…
read the full sponge overview →
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Frequently asked questions
Is odysseus or sponge more popular?
odysseus has 94,935 GitHub stars and sponge has 2,869. odysseus has the larger community by that measure.
Are odysseus and sponge free?
Both are open source. odysseus is licensed under AGPL-3.0 and sponge under MIT. Neither carries a licence fee.
What is the difference between odysseus and sponge?
odysseus is written in Python and sponge in Go. 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 sponge?
Choose odysseus if you want the larger community (94,935 stars) or its AGPL-3.0 licence terms. Choose sponge if its feature set, stack or MIT licence fits better. Both are self-hostable.