Hermes 4 – Llama-3.1 405B (Reasoning)
Analysis Summary
This reasoning-enabled Hermes 4 variant from Nous Research posts strong math and coding benchmark results, suggesting real strength in structured problem-solving despite a lower general intelligence measure.
It could suit technical teams needing math-heavy or coding support on Llama-based infrastructure, though pricing is high for the overall capability on offer, and general content quality lags behind current flagships.
Assessed July 29, 2026
Editorial notes
Hermes 4 405B Reasoning shows strong math and coding benchmark results despite a low overall intelligence index, at a premium price point.
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
DFO Verdict
Hermes 4 405B Reasoning shows strong math and coding benchmark results despite a low overall intelligence index, at a premium price point.
Benchmark scores
Magenta = intelligence · Ink = technical/agentic · Cyan = content & long-context · Grey = community benchmarks. Data: Artificial Analysis, Hugging Face.
9 Intelligence Index·69.7 Math Index
How Hermes 4 – Llama-3.1 405B (Reasoning) compares
Hermes 4 – Llama-3.1 405B (Reasoning) ranks #263 of 401 AI models we track for overall intelligence. At $1.00 per million input tokens it is cheaper than 28% of comparable models.
Dark bar = input · light bar = output, scaled to the priciest peer.
1M tokens ≈ 8 full-length novels or ~2,500 pages of business documents in a single request.
Strongest on value. The pulled-in technical corner is the trade-off, and if the shape matters more than the price, this is your model.
Compare shapes side-by-side →Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $1.00 | $0.001000 |
| Output | $3.00 | $0.003000 |
What would Hermes 4 – Llama-3.1 405B (Reasoning) cost your business?
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A website chatbot handling around 100 customer conversations a day, a few short messages each.
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We route routine calls to cheap models and save Hermes 4 – Llama-3.1 405B (Reasoning) for the hard ones. Most clients cut their estimate by 60-80%.
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Frequently asked questions about Hermes 4 – Llama-3.1 405B (Reasoning)
How much does Hermes 4 – Llama-3.1 405B (Reasoning) cost?
Hermes 4 – Llama-3.1 405B (Reasoning) costs $1.00 per million input tokens and $3.00 per million output tokens.
Who created Hermes 4 – Llama-3.1 405B (Reasoning)?
Hermes 4 – Llama-3.1 405B (Reasoning) is developed by Nous Research and was released on August 27, 2025.
