The best Hermes Agent model in 2026 is Claude Opus 5, which scores 8.27 on GoldieBench and runs inside Hermes on a normal Claude subscription.
GPT-5.6 Sol is my runner-up at 8.16, and the rest of the list depends on whether you want free, local, cheap or built for long agent loops.
Hermes Agent is an open-source agent from Nous Research, and the model is the brain you plug into it.
The model reads each prompt Hermes builds, picks the next tool to call and decides when the task is complete.
Below is the ranked list, a full comparison table, and then a reference section for each model with its strengths, its weaknesses and my verdict.
Top 3 Picks At A Glance
- 🥇 Claude Opus 5 is the best Hermes Agent model overall, with an 8.27 average and no extra bill if you already pay for Claude.
- 🥈 GPT-5.6 Sol is the best alternative flagship, with an 8.16 average.
- 🥉 MiniMax M3 is the best cheap model, with a 7.97 average at $0.30 per million input tokens.
Category Winners
| Category | Winner | Why it wins |
|---|---|---|
| Best overall | Claude Opus 5 | It has the highest average of any single model on the board, and it runs on a subscription. |
| Best free | Solar Mini 4 | It's free on Nous Portal for now, and it's fast. |
| Best local | Agents-A1 | It's tuned for tool calling and it's quick on a laptop. |
| Best cheap | MiniMax M3 | It pairs a high score with a very low price and a huge context window. |
| Best for long agent loops | Kimi K3 | It holds about one million tokens and it's tuned for long-horizon work. |
What The Model Does In Hermes Agent
Hermes Agent gives an AI model a body.
It supplies tools, memory, skills, scheduling and safety checks.
The model supplies the reasoning.
On every step, Hermes sends the model your request, your memory and a list of tools.
The model answers or asks for a tool, Hermes runs it, and the loop repeats.
Because Hermes doesn't ship its own brain, you can swap the model without rebuilding anything.
That's why "which model?" is the most common question I get about Hermes.
How I Ranked And Scored Them
The ranking is my own first-person list, built from models I've actually run inside Hermes.
The scores in the tables are not my opinion.
They're the live GoldieBench averages on 10 October 2026.
GoldieBench gives every model the same one-shot build prompts, renders each result and scores it from 0 to 10.
You need to know its limit before you read the table.
It scores one-shot builds and not agent loops, so a high score means a model builds well in one attempt.
It doesn't prove a model will stay on track for 200 tool calls.
For that part I rely on hands-on use, and I label it clearly.
The 8 Best Hermes Agent Models, Ranked
| Rank | Model | Maker | GoldieBench average | Cost | Best for |
|---|---|---|---|---|---|
| 1 | Claude Opus 5 | Anthropic | 8.27 | Claude subscription, or $5 in and $25 out per million | Main brain |
| 2 | GPT-5.6 Sol | OpenAI | 8.16 | $5 in and $30 out per million | Second flagship |
| 3 | Kimi K3 | Moonshot AI | 7.89 | Kimi coding plan, or $3 per million input | Long agent loops |
| 4 | MiniMax M3 | MiniMax | 7.97 | $0.30 in and $1.50 out per million | Cheap automation |
| 5 | GLM-5.2 | Zhipu | 7.77 | GLM Coding Plan, open weights | Value and fallback |
| 6 | Grok 4.7 | xAI | 7.15 on 20 tasks | $2 in and $6 out per million | Fast fixes |
| 7 | Solar Mini 4 | Upstage AI | Not on the board | Free for a limited time | Free daily tasks |
| 8 | Agents-A1 | InternScience | 4.83 | Free, runs locally | Private local work |
I've ranked Kimi K3 above MiniMax M3 even though its average is slightly lower.
That's because this is a ranking for an agent, and K3 is the one I trust most on long jobs.
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1. Claude Opus 5: Best Overall
Claude Opus 5 is Anthropic's flagship model.
It averages 8.27 on GoldieBench, with 13 gold medals, which makes it the top single model on the board.
Strengths: It plans well, it writes clean output and it checks its own work before it says it's done.
Weaknesses: The API price is high if you don't use the subscription route.
How it runs in Hermes: An official Nous Research plugin, announced on 22 September 2026, uses your Claude Code login as the brain.
Hermes still controls the tools, the memory and the approvals.
The plugin needs Hermes 0.21.4 or newer.
Verdict: This is the one to pick if you already pay for Claude.
2. GPT-5.6 Sol: Best Alternative Flagship
GPT-5.6 Sol is OpenAI's flagship in the 5.6 family.
It averages 8.16 on GoldieBench, with far more silver and bronze medals than golds.
Strengths: It lands on the podium often, which tells me it's consistent.
Weaknesses: Output tokens are listed at $30 per million, which is the highest output price in this list.
How it runs in Hermes: I add it as a profile through OpenRouter.
Verdict: This is a great second brain and reviewer, and it's a fine main brain if you prefer OpenAI.
My Claude Opus 5 vs GPT-5.6 post compares the two in more depth.
3. Kimi K3: Best For Long Agent Loops
Kimi K3 is Moonshot AI's flagship.
It averages 7.89 on GoldieBench, with eight gold medals.
Strengths: It holds about one million tokens of context, and it's tuned for long-horizon agent work.
Weaknesses: When I asked it what model it was, it gave the wrong name, so check the status line and not the model's own answer.
How it runs in Hermes: I point a profile at the Kimi coding plan, where K3 appeared at no extra cost.
Verdict: This is my pick when a job runs for many steps and the agent must remember all of them.
This verdict comes from hands-on use, because GoldieBench doesn't test loops.
4. MiniMax M3: Best Cheap Model
MiniMax M3 averages 7.97 on GoldieBench.
It's the cheapest big-context model on the board, at $0.30 per million input tokens and $1.50 per million output tokens.
Strengths: It has a context window of about one million tokens and a very low price.
Weaknesses: It has fewer gold medals than the flagships, so the very best builds still come from the top two.
How it runs in Hermes: I run it as its own profile and use it for automations.
Verdict: This is the best value on the whole list.
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5. GLM-5.2 And GLM-5.3: Best Value Fallback
GLM is Zhipu's model family, and GLM-5.2 averages 7.77 on GoldieBench.
GLM-5.3 is live on the GLM Coding Plan, and it isn't scored on the board yet.
Strengths: The coding plan is good value, the context window is about one million tokens and the GLM-5.2 weights are open.
Weaknesses: It sometimes cuts long outputs short.
How it runs in Hermes: I cloned my GLM-5.2 profile and changed one line to move to GLM-5.3.
Verdict: This is a strong budget main brain and the fallback I keep behind my primary.
6. Grok 4.7: Best For Fast Fixes
Grok 4.7 is xAI's model, released in September 2026.
It averages 7.15 on GoldieBench, but only across 20 tasks.
Strengths: It's quick, and in my test it fixed and tested a bug in 13.9 seconds.
Weaknesses: Its score is lower than the flagships, and it has been tested on fewer tasks.
How it runs in Hermes: I run it as a profile through OpenRouter.
Verdict: It's worth having for speed, but it isn't my main brain.
7. Solar Mini 4: Best Free Model
Solar Mini 4 is a mixture-of-experts model from Upstage AI in South Korea.
It has 3 billion active parameters out of 35 billion and a context window of 500,000 tokens.
Strengths: It's free on Nous Portal for a limited time, and it answered fast in my tests.
Weaknesses: It isn't frontier level, free models get rate limited, and it isn't on GoldieBench.
How it runs in Hermes: You pick the free variant in the model list, and you must avoid the paid variant with a similar name.
Verdict: It's the best free starting point right now.
My Solar Mini 4 with Hermes review has the full test.
8. Agents-A1: Best Local Model
Agents-A1 is an open-weight model from InternScience that's tuned for tool calling.
It averages 4.83 on GoldieBench and runs at about 95 tokens a second on my 36GB Mac.
Strengths: It's free, private, offline and fast enough for agent loops.
Weaknesses: Its one-shot build quality is far below the cloud models.
How it runs in Hermes: You pull it with Ollama and point a profile at your local server.
Verdict: It's the best local brain for agent duty.
Models That Just Missed The List
| Model | GoldieBench average | Why it missed |
|---|---|---|
| Qwen 3.8 | 8.10 | It's excellent and a fair swap for a flagship, but the benched build ran through Alibaba's Qoder platform. |
| Claude Opus 5.5 | 7.57 | It scores lower than Opus 5 on one-shot builds. |
| Claude Sonnet 5 | 7.01 | It's a good daily driver on the same Claude plugin, but Opus is stronger. |
| Qwable 5 27B Coder | 7.14 | It's the best local model for build quality, but it's slow for loops. |
| Gemma 4 12B MLX | 3.98 | It's a light local helper that runs on 16GB. |
| DeepSeek V4 Flash | Currently unranked | It's cheap and built for agent loops, but it has no ranked score yet. |
Free vs Paid: Which Should You Choose?
Choose a paid subscription route if the agent does work a client will see.
Choose a cheap API model if the agent runs all day and the tasks are routine.
Choose a free hosted model if you're still learning what an agent can do for you.
Choose a local model if your data can't leave your machine.
Most people should run two or three of these, and not one.
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Tips And Limits
Run hermes model to change your default model, and keep one profile per model so you can compare them fairly.
Check which model is really running with the status command, because a label can be wrong.
Set a fallback provider, so the agent keeps going when your main model fails.
Re-test after every big release, because launch scores move.
Remember that every score here is a one-shot build score.
Final Verdict
Claude Opus 5 is the best Hermes Agent model, and it's the one I'd choose if I could only keep one.
GPT-5.6 Sol is the best alternative.
MiniMax M3 is the best value, Kimi K3 is the best for long jobs, Solar Mini 4 is the best free option and Agents-A1 is the best local one.
Start with the one that matches your budget, then add a second brain for the other kind of work.
Related Reading
- Claude Opus 5 vs GPT-5.6 compares the top two models head to head.
- The best AI models for coding ranks models for pure coding work.
- Solar Mini 4 with Hermes reviews the free pick in detail.
- The best Hermes Agent setup covers the stack around the model.
- The best Hermes Agent memory covers how the agent remembers your work.
- My earlier list of Hermes agent models on the AI Profit Boardroom blog covers eight model families.
Also On Our Network
- 🌐 Step-by-step setup for all five Hermes Agent model picks
- 🌐 Which Hermes Agent model to give each business job
- 🌐 Routing Hermes Agent models inside an Agent OS
- 🌐 The live benchmark data behind this Hermes Agent model ranking
FAQ: Best Hermes Agent Model
What is the best Hermes Agent model overall?
Claude Opus 5 is the best Hermes Agent model overall.
It's the top single model on GoldieBench at 8.27, and it runs inside Hermes on a Claude subscription.
What is the best free model for Hermes Agent?
Solar Mini 4 is my best free pick while it's free on Nous Portal.
It's fast and handles basic agent tasks, but it isn't frontier level.
What is the best local model for Hermes Agent?
Agents-A1 is my best local pick for agent work.
Qwable 5 27B Coder scores higher on one-shot builds at 7.14, but it's much slower.
Is Claude Opus 5.5 better than Opus 5 for Hermes Agent?
It isn't better on GoldieBench.
Opus 5.5 averages 7.57 and Opus 5 averages 8.27 on one-shot builds, so you should test both on your own tasks.
Does GoldieBench measure how good a model is at agent loops?
No, it doesn't.
GoldieBench scores one-shot builds, so it's a signal for build quality and not a test of long tool-calling loops.
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About Julian
I'm Julian Goldie, an SEO entrepreneur, author and founder of the AI Profit Boardroom, which has 3,400+ members.
I help business owners scale with AI agents, automation and SEO.
- I've built Goldie Agency into a seven-figure SEO and link building agency.
- I've grown my YouTube channel to 400,000+ subscribers.
- I run GoldieBench, where I score AI models on real one-shot builds.
- I wrote "Link Building Mastery", which is available on Amazon.
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Pick the brain that fits your budget, test it on one real task, and you'll know for yourself which is the best Hermes Agent model.
