Choosing the best model for Hermes agent just got more interesting, because Hermes now lets you plug in almost any AI brain — and a new Grok integration has changed the game. In my latest video I show Grok running directly inside Hermes agent, unlocking real-time X search, image and video generation, and voice. But Grok is not the only option, so here is my honest top 5 of the best models to run with Hermes, and exactly when to use each.
Key takeaways
- The best model for Hermes agent depends on the job — Grok for real-time X + media, Claude for building, a free local model for zero cost.
- Grok is the new standout: one
hermes modellogin adds X search, image & video generation, and voice. - You are never locked in — Hermes lets you swap models anytime, including free local options.
The 5 Best Models For Hermes Agent
1. Grok (xAI) — the new all-in-one standout
Grok is the model that just changed what Hermes can do. Plug it in and your agent gains real-time X (Twitter) search, image generation (Grok Imagine), video generation, and text-to-speech voice — capabilities Hermes did not have natively before. It is also genuinely fast to respond and carries a very large context window. Best of all, if you already pay for X there is no additional cost; you are using the same subscription you already have, just wired into an autonomous agent. For most people wanting one model that does the most, this is the pick.
2. Claude (Anthropic) — the building & coding engine
When you need to actually build something — a dashboard, a system, a workflow, or real code — Claude is the deep-thinking engine to point Hermes at. It plugs into the wider Agent OS as the layer that can write and implement code with full tool access, which is why running Claude Code free pairs so well with Hermes. If your work is creation and engineering rather than real-time search, Claude is the strongest brain for the job.
3. GPT (OpenAI) — the reliable generalist
GPT-class models remain a dependable all-rounder for Hermes: strong general reasoning, broad tool use, and solid writing. If you already live in the OpenAI ecosystem, it is an easy, capable brain to drive your agent with for everyday tasks, even if it lacks Grok’s native real-time X feed.
4. Gemini (Google) — huge context and multimodal
Gemini is worth considering when you need a very large context window or strong multimodal/vision handling. For agents chewing through long documents or image-heavy tasks, it is a capable choice, and a free tier makes it accessible to test inside Hermes before committing.
5. A free local model — zero cost and private
Hermes itself is lightweight enough to run locally (the demo notes it can run even on a phone), so you can drive it with a free local model and pay nothing at all. This is the best option if cost or privacy is your priority — your data stays on your machine, and there are no API bills. It will not match Grok’s media features, but for many automation tasks a capable local model is more than enough.
How To Plug A Model Into Hermes
Switching models is deliberately simple — no manual API juggling. In your terminal you run hermes model, pick the provider (for Grok, select the xAI option and log in via the page it opens), and it plugs straight into your setup. Two tips from the walkthrough: update Hermes first with hermes update before changing the model, and for tools like X search, image or video generation, enable them under hermes tools. Anything you configure locally then syncs into your Agentic OS Mission Control dashboard automatically.
| Model | Best for | Real-time X | Media generation | Cost note |
|---|---|---|---|---|
| Grok (xAI) | All-in-one real-time + media | Yes | Images, video, voice | No extra cost if you have X |
| Claude | Building, coding, deep tasks | No | No | Paid + free tiers |
| GPT (OpenAI) | General reasoning | No | Images | Paid + free tiers |
| Gemini | Huge context, multimodal | No | Images, video | Free tier available |
| Free local model | Zero cost, privacy | No | No | Free |
So Which Model Should You Actually Use?
There is no single winner — the best model for Hermes agent is the one that matches your task. Reach for Grok when you want one brain that searches X in real time and generates images, video and voice. Reach for Claude when you are building systems or writing code. Use GPT or Gemini if you already prefer them or need their particular strengths, and a free local model when cost or privacy comes first. Because Hermes lets you swap brains in seconds, the smart move is to keep a couple configured and switch based on the job rather than marrying one. You can squeeze more out of any of them with my 200+ free AI prompts.
Why Running Grok In Hermes Beats Grok In A Browser
Even if you already use Grok, running it inside Hermes is a different beast. Using Grok in a browser tab is like using a hammer; connecting it to a Hermes agent is like attaching that hammer to an autonomous worker that runs around the clock, remembers everything, coordinates with your other tools, and gets smarter over time. Same subscription, completely different power level. That is really why model choice matters here: the model is not just replying in a chat, it is the brain driving an agent that takes real actions, holds persistent memory, and works on tasks while you do something else.
You Can Mix Models In One Agent OS
You do not have to pick just one. Inside a full Agent OS, different models handle different layers — Claude and Claude Code as the deep building engine, Grok adding real-time X search plus image, video and voice, and a router like OpenClaw passing tasks between agents. Set up that way, you get the builder, the real-time media brain and the coordinator all sharing memory and one mission-control dashboard. The best model for Hermes agent then becomes less about a single winner and more about assigning the right brain to the right job.
Also on my network: this guide on JulianGoldie.co.uk and GoldStarLinks.
Get The Full Hermes + Grok Setup
If you want the complete system — Hermes wired into the Agent OS inside the AI Profit Boardroom, with the zip file, the prompts, a 30-day roadmap, and four weekly coaching calls — that is where the full setup, training and support live. It is the fastest way to get Hermes running with the right model for you, and to layer in new capabilities (like Hermes computer use) as they drop.
