head to head · open source
Hermes Agent vs AGenUI
Hermes Agent has 246,492 GitHub stars, 51,615 forks, 41,784 open issues and last shipped yesterday. AGenUI has 1,151 stars, 167 forks, 7 open issues and last shipped yesterday. Hermes Agent leads on adoption by 21,315% (246,492 vs 1,151 stars). Hermes Agent is written in Python under MIT; AGenUI is written in C++ under Apache-2.0. Hermes Agent has attracted 21% as many forks as stars, AGenUI 15%. Hermes Agent was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ai-agents), 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 | AGenUI | |
|---|---|---|
| GitHub stars | ★ 246K | ★ 1.2K |
| License | MIT | Apache-2.0 |
| Written in | Python | C++ |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 52K | ⑂ 167 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Hermes Agent if
- You weight community size — 246K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick AGenUI if
- You want the AGenUI feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches C++
- You evaluated both and AGenUI fits your workflow better
About Hermes Agent
Hermes Agent is a desktop AI agent developed by Nous Research that maintains persistent memory and self improving capabilities across sessions and platforms. It operates as a local first, cross platform interface for LLMs, integrating with multiple model providers and deployment environments without vendor lock in. The agent implements a closed learning loop where it curates its own memory, creates and refines skills from experience, and supports cross session recall via full text search and summarization.
read the full Hermes Agent overview →
About AGenUI
AGenUI is a native SDK for rendering generative user interfaces on mobile devices across iOS, Android, and HarmonyOS. It is built on, and fully implements, the A2UI v0.9 protocol open sourced by Google, and it sits in the AI interaction and interface layer of the ecosystem: the LLM produces structured component descriptions, which AGenUI receives as streaming data and turns into live native UI. Under the hood, a shared C++ core engine dispatches the component protocol, while three separate platform rendering engines draw the result using each operating system's own UI capabilities. The project is licensed under A…
read the full AGenUI overview →
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Frequently asked questions
Is Hermes Agent or AGenUI more popular?
Hermes Agent has 246,492 GitHub stars and AGenUI has 1,151. Hermes Agent has the larger community by that measure.
Are Hermes Agent and AGenUI free?
Both are open source. Hermes Agent is licensed under MIT and AGenUI under Apache-2.0. Neither carries a licence fee.
What is the difference between Hermes Agent and AGenUI?
Hermes Agent is written in Python and AGenUI in C++. 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 AGenUI?
Choose Hermes Agent if you want the larger community (246,492 stars) or its MIT licence terms. Choose AGenUI if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.