head to head · open source
odysseus vs CopilotKit
odysseus has 94,935 GitHub stars, 1,862 forks, 1,233 open issues and last shipped yesterday. CopilotKit has 38,475 stars, 4,798 forks, 295 open issues and last shipped yesterday. odysseus leads on adoption by 147% (94,935 vs 38,475 stars). odysseus is written in Python under AGPL-3.0; CopilotKit is written in TypeScript under MIT. odysseus has attracted 2% as many forks as stars, CopilotKit 12%. CopilotKit 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 | CopilotKit | |
|---|---|---|
| GitHub stars | ★ 95K | ★ 38K |
| License | AGPL-3.0 | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 1.9K | ⑂ 4.8K |
| 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 CopilotKit if
- You want the CopilotKit feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and CopilotKit 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 CopilotKit
CopilotKit Docs · Examples · CopilotKit Intelligence · Discord Build agent native applications — on any framework, on any surface. Generative UI, shared state, and human in the loop workflows for React, Angular, Vue, React Native — and in Slack and Microsoft Teams. What is CopilotKit? CopilotKit is a best in class SDK for building full stack agentic applications, Generative UI, and chat applications. What started as a React library is now the horizontal layer between your agents and your users : the same agent can power your web app, your mobile app, and your team's Slack or Microsoft Teams workspace. We are the…
read the full CopilotKit overview →
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Frequently asked questions
Is odysseus or CopilotKit more popular?
odysseus has 94,935 GitHub stars and CopilotKit has 38,475. odysseus has the larger community by that measure.
Are odysseus and CopilotKit free?
Both are open source. odysseus is licensed under AGPL-3.0 and CopilotKit under MIT. Neither carries a licence fee.
What is the difference between odysseus and CopilotKit?
odysseus is written in Python and CopilotKit 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 CopilotKit?
Choose odysseus if you want the larger community (94,935 stars) or its AGPL-3.0 licence terms. Choose CopilotKit if its feature set, stack or MIT licence fits better. Both are self-hostable.