head to head · open source
Hermes Agent vs ChatUI
Hermes Agent has 246,618 GitHub stars, 51,659 forks, 41,784 open issues and last shipped today. ChatUI has 4,448 stars, 426 forks, 53 open issues and last shipped 6 months ago. Hermes Agent leads on adoption by 5,444% (246,618 vs 4,448 stars). Hermes Agent is written in Python under MIT; ChatUI is written in TypeScript under MIT. Hermes Agent has attracted 21% as many forks as stars, ChatUI 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.
← all 8884 open source comparisons
Side by side
| Hermes Agent | ChatUI | |
|---|---|---|
| GitHub stars | ★ 247K | ★ 4.4K |
| License | MIT | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-09-18 | 2026-03-30 |
| Forks | ⑂ 52K | ⑂ 426 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Hermes Agent if
- You weight community size — 247K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick ChatUI if
- You want the ChatUI feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and ChatUI 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 ChatUI
ChatUI is an MIT licensed UI design language and React component library for conversational interfaces, published on npm as @chatui/core and aimed at front end teams that need a ready chat surface instead of hand built message components.
read the full ChatUI overview →
More in AI & Machine Learning
Related comparisons
More AI Interaction & Interfaces projects
Compare either of these against the rest of the AI Interaction & Interfaces field.
Frequently asked questions
Is Hermes Agent or ChatUI more popular?
Hermes Agent has 246,618 GitHub stars and ChatUI has 4,448. Hermes Agent has the larger community by that measure.
Are Hermes Agent and ChatUI free?
Both are open source. Hermes Agent is licensed under MIT and ChatUI under MIT. Neither carries a licence fee.
What is the difference between Hermes Agent and ChatUI?
Hermes Agent is written in Python and ChatUI 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 ChatUI?
Choose Hermes Agent if you want the larger community (246,618 stars) or its MIT licence terms. Choose ChatUI if its feature set, stack or MIT licence fits better. Both are self-hostable.