Google ADK vs 
Hermes Agent
Google ADK vs Hermes Agent compared for 2026 — features, license, ease of use, performance and which one to choose. Google's official Agent Development Kit vs An agent that keeps what it learns from you.
Updated regularly · curated by olud.ai
Google ADK vs Hermes Agent at a glance
| Spec | Google ADK | Hermes Agent |
|---|---|---|
| Category | AI agent framework | AI agent framework |
| Type | Agent framework | Autonomous agent (Python) |
| License | Apache-2.0 | MIT |
| Runs locally | Partial | Yes |
| Primary language | Python | Python |
| Ease of use | Intermediate | Intermediate |
| Best for | production agents on the Google/Gemini stack | developers building an agent meant to be lived with, not called once |
| GitHub stars | 21.3k | 239k |
How Google ADK and Hermes Agent score
| Criterion | Google ADK | Hermes Agent |
|---|---|---|
| Popularity | 3.5 | 5.0 |
| Maintenance | 5.0 | 5.0 |
| Ease of use | 3.5 | 3.5 |
| Privacy | 3.5 | 5.0 |
| License freedom | 5.0 | 5.0 |
Scores are computed automatically from public signals — GitHub stars (popularity), recent commit activity (maintenance), license type (freedom), local-first design (privacy) and onboarding complexity (ease of use). Indicative, not a verdict.
What each one is
Google ADK
ADK is Google's code-first framework for building, evaluating and deploying agents: hierarchical multi-agent systems, workflow control, built-in eval and a path to Vertex AI.
- Model-agnostic but optimized for Gemini
- Workflow agents give deterministic orchestration
- Built-in evaluation and deployment story
Hermes Agent
Hermes Agent from Nous Research is an autonomous agent built to accumulate context over time rather than start from zero at each session, so its usefulness compounds with use.
- Carries context forward between sessions
- MIT licence with no usage restriction
- Backed by a research lab with a track record on open weights
Key differences
Google ADK is agent framework, while Hermes Agent is autonomous agent (Python). Their licenses differ (Apache-2.0 vs MIT), which matters if you ship a commercial product. They also differ in how they run (Partial vs Yes). In short, Google ADK fits production agents on the Google/Gemini stack, and Hermes Agent fits developers building an agent meant to be lived with, not called once.
Which should you choose?
Choose Google ADK for production agents on the Google/Gemini stack. Choose Hermes Agent for developers building an agent meant to be lived with, not called once.
There is rarely one winner — many setups use both. The right pick depends on your hardware, your team's skills, and whether you value simplicity or control.
Frequently asked questions
Is Google ADK or Hermes Agent easier to use?
Both sit at a similar level (Intermediate). Your choice should come down to fit rather than difficulty.
Are Google ADK and Hermes Agent free?
Google ADK is free and open source (Apache-2.0), and Hermes Agent is free and open source (MIT). Neither charges for the core software.
Can I run Google ADK and Hermes Agent locally?
Google ADK: partial · Hermes Agent: yes. Both can be used without sending your data to a third-party cloud where their setup allows.
Google ADK vs Hermes Agent — which should I pick in 2026?
Choose Google ADK for production agents on the Google/Gemini stack. Choose Hermes Agent for developers building an agent meant to be lived with, not called once.
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