Hermes 4 405B

Nous API model specs with normalized input price, output price, context window, sample workload cost, and related comparisons.

Page updated:  Data confirmed:  Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget brief

Hermes 4 405B is estimated at $2.5 for the standard workload.

Hermes 4 405B is best suited for general API evaluation. A 1M input token plus 500K output token workload is estimated at $2.5.

Input price$1per 1M tokens
Output price$3per 1M tokens
Context window131.07Kreported maximum
Popularity#22142.1M tokens signal volume

Use this as a first-pass planning estimate, then verify provider limits, routing, discounts, and availability before production deployment.

Model Specs
ProviderNous
Model IDnousresearch/hermes-4-405b
Prompt Price
per 1M tokens
$1
Completion Price
per 1M tokens
$3
Sample Workload Cost
1M input + 500K output
$2.5
Context Window131.07K
Release Date
Popularity#221
Popularity Signal42.1M tokens

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Prices are normalized to USD per 1M tokens.
Hermes 4 405B Calculating… Estimated monthly API cost
Unit prices $1 input / $3 output Per 1M tokens

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Alternative path

Alternative Shortlist

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Use these rows to build a test shortlist around Hermes 4 405B. Lower cost, same-provider fit, and larger context are separate decisions, so each group is ranked by a different signal.

Lower-cost alternatives

Cross-provider candidates with a lower standard 1M input plus 500K output estimate.

ModelProviderSample CostContextWhy it is hereNext Step
🔥Owl AlphaOpenRouter$01.05MLower standard workload estimate from another provider.Open model Compare
New🔥Nemotron 3 Ultra (free)NVIDIA$01MLower standard workload estimate from another provider.Open model Compare
🔥Laguna M.1 (free)Poolside$0262.14KLower standard workload estimate from another provider.Open model Compare
Nemotron 3 Super (free)NVIDIA$01MLower standard workload estimate from another provider.Open model Compare

Same-provider swaps

Lower-cost options from the same provider, useful when account setup or procurement is already fixed.

ModelProviderSample CostContextWhy it is hereNext Step
Hermes 3 405B Instruct (free)Nous$0131.07KSame provider with a lower standard workload estimate.Open model Compare
Hermes 4 70BNous$0.33131.07KSame provider with a lower standard workload estimate.Open model Compare
Hermes 3 70B InstructNous$1.05131.07KSame provider with a lower standard workload estimate.Open model Compare
Hermes 3 405B InstructNous$1.5131.07KSame provider with a lower standard workload estimate.Open model Compare

Larger-context upgrades near this budget

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Llama 4 ScoutMeta$0.2510MMore context while staying near this model's sample-cost band.Open model Compare
Grok 4.20xAI$2.52MMore context while staying near this model's sample-cost band.Open model Compare
Grok 4.20 Multi-AgentxAI$2.52MMore context while staying near this model's sample-cost band.Open model Compare
🔥Owl AlphaOpenRouter$01.05MMore context while staying near this model's sample-cost band.Open model Compare
Model Introduction

Hermes 4 is a large-scale reasoning model built on Meta-Llama-3.1-405B and released by Nous Research. It introduces a hybrid reasoning mode, where the model can choose to deliberate internally with...

Best Fit

Hermes 4 405B is best suited for general API evaluation.

Cost Example

A 1M input token plus 500K output token workload is estimated at $2.5.

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