head to head · open source
Hermes Agent vs CopilotKit
Hermes Agent has 259,804 GitHub stars, 57,202 forks, 41,784 open issues and last shipped yesterday. CopilotKit has 38,475 stars, 4,798 forks, 295 open issues and last shipped yesterday. Hermes Agent leads on adoption by 575% (259,804 vs 38,475 stars). Hermes Agent is written in Python under MIT; CopilotKit is written in TypeScript under MIT. Hermes Agent has attracted 22% as many forks as stars, CopilotKit 12%. Hermes Agent was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (ai, ai-agent), so they are genuine substitutes rather than adjacent tools.
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
| Hermes Agent | CopilotKit | |
|---|---|---|
| GitHub stars | ★ 260K | ★ 38K |
| License | MIT | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 57K | ⑂ 4.8K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Hermes Agent if
- You weight community size — 260K stars and counting
- You want the MIT 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 Hermes Agent
Hermes Agent ☤ Hermes Agent Hermes Desktop The self improving AI agent built by Nous Research. It's the only agent with a built in learning loop — it creates skills from experience, improves them during use, nudges itself to persist knowledge, searches its own past conversations, and builds a deepening model of who you are across sessions. Run it on a $5 VPS, a GPU cluster, or serverless infrastructure that costs nearly nothing when idle. It's not tied to your laptop — talk to it from Telegram while it works on a cloud VM. Use any model you want — Nous Portal, OpenRouter, OpenAI, your own endpoint, and many…
read the full Hermes Agent 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 Hermes Agent or CopilotKit more popular?
Hermes Agent has 259,804 GitHub stars and CopilotKit has 38,475. Hermes Agent has the larger community by that measure.
Are Hermes Agent and CopilotKit free?
Both are open source. Hermes Agent is licensed under MIT and CopilotKit under MIT. Neither carries a licence fee.
What is the difference between Hermes Agent and CopilotKit?
Hermes Agent 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, Hermes Agent or CopilotKit?
Choose Hermes Agent if you want the larger community (259,804 stars) or its MIT licence terms. Choose CopilotKit if its feature set, stack or MIT licence fits better. Both are self-hostable.