head to head · open source
Hermes Agent vs assistant-ui
Hermes Agent has 259,804 GitHub stars, 57,202 forks, 41,784 open issues and last shipped yesterday. assistant-ui has 12,912 stars, 1,304 forks, 207 open issues and last shipped yesterday. Hermes Agent leads on adoption by 1,912% (259,804 vs 12,912 stars). Hermes Agent is written in Python under MIT; assistant-ui is written in TypeScript under MIT. Hermes Agent has attracted 22% as many forks as stars, assistant-ui 10%. Hermes Agent 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
| Hermes Agent | assistant-ui | |
|---|---|---|
| GitHub stars | ★ 260K | ★ 13K |
| License | MIT | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 57K | ⑂ 1.3K |
| 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 assistant-ui if
- You want the assistant-ui feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and assistant-ui 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 assistant-ui
Product · Documentation · Examples · Discord · Contact Sales The UX of ChatGPT in your React app 💬🚀 assistant ui is an open source TypeScript/React library to build production grade AI chat experiences fast. Installation The fastest path is the CLI, which scaffolds a Next.js app or adds the styled components to an existing project: Or install the packages directly: Usage useChatRuntime connects to the Vercel AI SDK out of the box. Swap it for useLangGraphRuntime , useDataStreamRuntime , or any custom runtime to integrate with your own backend. What you get Composable primitives : build any chat UX from Thread…
read the full assistant-ui overview →
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Frequently asked questions
Is Hermes Agent or assistant-ui more popular?
Hermes Agent has 259,804 GitHub stars and assistant-ui has 12,912. Hermes Agent has the larger community by that measure.
Are Hermes Agent and assistant-ui free?
Both are open source. Hermes Agent is licensed under MIT and assistant-ui under MIT. Neither carries a licence fee.
What is the difference between Hermes Agent and assistant-ui?
Hermes Agent is written in Python and assistant-ui 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 assistant-ui?
Choose Hermes Agent if you want the larger community (259,804 stars) or its MIT licence terms. Choose assistant-ui if its feature set, stack or MIT licence fits better. Both are self-hostable.