Hermes 4 405B
Provider：Nous Research
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...
Key specs
- Context：131.1K
- Max output：118K
- Tokenizer：Other
- Released：2025-08-26
Token pricing
- Input price：$1.00 / 1M tokens
- Output price：$3.00 / 1M tokens
- Blended price：$1.50 / 1M tokens
Modalities
Text
Use Cases
- Deep Reasoning & Analysis：Math proofs, logical reasoning, multi-step planning — ideal for research and financial analysis.（≈ $0.024/call）
When to pick this model
Signals derived from public pricing and spec fields — not a benchmark. Validate with official docs and your own eval.
- Long max output (>=30K tokens): strong fit for deep report / essay / document-drafting workflows.
FAQ
- What is the token pricing of Hermes 4 405B? Input price $1.00 / 1M tokens, output price $3.00 / 1M tokens, blended about $1.50 / 1M tokens. Refer to Nous Research’s official page for the exact rate.
- What context window does Hermes 4 405B support? Context window is 131.1K, max output about 118K, suitable for long documents, multi-turn chat and complex reasoning.
- What scenarios is Hermes 4 405B best for? Based on its capability and pricing, Hermes 4 405B fits best: Deep Reasoning & Analysis. See the Use Cases section for details and cost estimates.
- What input/output modalities does Hermes 4 405B support? Supports Text modality.
- Is Hermes 4 405B a free model? Hermes 4 405B is billed per token, not a free model.
- Which provider offers Hermes 4 405B? Hermes 4 405B is offered by Nous Research.
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Full info：Hermes 4 405B