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Nous: Hermes 4 405B API Pricing
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...
How much does Nous: Hermes 4 405B cost for a real workload?
At 10M input + 2M output tokens per month, Nous: Hermes 4 405B costs about $16 ($10 input + $6 output). Try your own volumes in the cost calculator.
What are cheaper alternatives to Nous: Hermes 4 405B?
- Pareto 26.10 — $0.8 in / $3.2 out per 1M
- Pareto Latest — $0.8 in / $3.2 out per 1M
- Amazon: Nova Pro 1.0 — $0.8 in / $3.2 out per 1M
- Qwen: Qwen3 235B A22B Thinking 2507 — $0.45 in / $3.5 out per 1M
- SpaceXAI: Grok 4.3 — $1.25 in / $2.5 out per 1M
- SpaceXAI: Grok 4.20 Multi-Agent — $1.25 in / $2.5 out per 1M
Where to run Nous: Hermes 4 405B
AI/ML API: one API key for 400+ models, including most models tracked here · Novita AI: pay-as-you-go APIs for open models (DeepSeek, Qwen, Llama and more) plus GPU cloud. Prices there follow each platform's own catalog and can differ from the list prices tracked here.
Run it on AI/ML API →Run it on Novita AI →
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Compare Nous: Hermes 4 405B with other models
Nous: Hermes 4 405B vs Nous: Hermes 3 70B InstructNous: Hermes 4 405B vs Nous: Hermes 3 405B Instruct
Frequently asked questions
How much does Nous: Hermes 4 405B cost?
Nous: Hermes 4 405B costs $1 per 1M input tokens and $3 per 1M output tokens (list price, snapshot October 22, 2026). At 10M input + 2M output tokens per month that is about $16.
What is the context window of Nous: Hermes 4 405B?
Nous: Hermes 4 405B has a context window of 131,072 tokens and can return up to 117,964 output tokens per response.
What are cheaper alternatives to Nous: Hermes 4 405B?
Cheaper models include Pareto 26.10 ($0.8 in / $3.2 out), Pareto Latest ($0.8 in / $3.2 out), Amazon: Nova Pro 1.0 ($0.8 in / $3.2 out). See the full list on this page.
Is Nous: Hermes 4 405B free to use?
No. Nous: Hermes 4 405B is a paid model at $1 input / $3 output per 1M tokens. 21 free models are listed on the free models page.
Provider: nousresearch · Model ID: nousresearch/hermes-4-405b · Modality: text->text · Price snapshot October 22, 2026, refreshed daily. How we collect prices