The best free AI model for Hermes agent gives you a fully working AI agent at zero cost. Hermes is free and open-source, and you can power it with a free model — local or via a free API — so you never pay a token bill. Here are the best free models for Hermes and how to use them.
Want a fully free Hermes setup, done for you? It is inside the Agent OS in the AI Profit Boardroom. → Join AIPB
Is Hermes Free To Run?
Yes. Hermes itself is free and open-source; the only thing that can cost money is the model. Pick a free model and the whole agent runs at zero cost. See how to use Hermes for free.
The Best Free AI Models For Hermes Agent
1. Gemma 4 12B (local) — free forever
Google's open-source Gemma 4 runs locally via Ollama, so it's free forever once installed, works offline, and is great as a fast sub-agent. See best local model for Hermes.
2. Grok via OAuth — free with a Twitter/X plan
If you subscribe to Twitter/X, you can use Grok 4.5 inside Hermes via OAuth for free (no separate API key), and it can even generate images and video.
3. Kimi K3 — free, open-source, frontier-level
Kimi K3 is free at kimi.com and one of the strongest open-source models — a superb free brain for Hermes on a cheap coding plan. See Kimi K3 for free.
4. Free APIs (OpenRouter, Tencent HY3)
No local hardware? Use a free API — Gemma via OpenRouter, or Tencent HY3 — and plug it straight into Hermes.
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How To Use A Free Model In Hermes
- Pick a free model — local (Ollama) or a free API/OAuth.
- Run
hermes model(or use the web UI models page) and select it. - Start building — zero token cost.
📺 Watch: Run Hermes Agent FREE With This NEW Model🤯
Free Local vs Free API
| Free local (Gemma via Ollama) | Free API (Grok OAuth, HY3) | |
|---|---|---|
| Cost | Free forever once installed | Free, within limits |
| Hardware | Needs a decent machine | None needed |
| Offline | Yes | No |
| Privacy | Fully private on your machine | Runs through a provider |
📺 Watch: Run Hermes Agent FREE With This NEW Model 🤯
Free Doesn't Mean Weak
Free models have come a long way — Kimi K3 and Grok 4.5 are genuinely frontier-level, and Gemma 4 punches above its size. For most Hermes tasks a free model is more than enough, and you can always keep a paid model for the rare high-stakes job.
Frequently Asked Questions
What is the best free AI model for Hermes agent?
For local, Gemma 4 12B (free forever via Ollama). For a free API, Grok via OAuth (with a Twitter/X plan) or Kimi K3 are excellent free brains for Hermes.
Can I run Hermes completely free?
Yes — Hermes is free and open-source, and with a free local or free-API model you pay nothing to run it.
Do free models run out?
Local models never run out (they're on your machine). Free APIs can have limits or expire, but Hermes lets you switch to another free option easily.
The Bottom Line
The best free AI model for Hermes agent depends on your setup: Gemma 4 locally for free-forever and offline, or Grok via OAuth or Kimi K3 as free-API brains. Either way Hermes runs at zero cost — and you can get the full free setup inside the AI Profit Boardroom.
