Nous: Hermes 4 405B
nousresearch/hermes-4-405b
PaidReasoning
Price Published
- Input
- $1.00 per million tokens
- Output
- $3.00 per million tokens
Optional features and fallback routes can cost extra. Confirm current terms with the provider.
Specifications Published
- Context window
- 131,072 tokens
- Max output
- 117,964 tokens
- Tool calling
- Not listed
- Vision input
- Not listed
- Reasoning
- Supported
- Knowledge cutoff
- Aug 31, 2024
- Listed since
- Aug 26, 2025
Measured by the Club Signed cheapoS reports
Not yet observed No signed request reports for this exact route yet. Missing reports aren't a failure or a zero.
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nousresearch/hermes-4-405b, and start with a small task you can check.
About this model OpenRouter description
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...
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Catalog data from the OpenRouter model catalog, retrieved Sep 29, 2026, 12:37 PM UTC. A listing isn't a live availability check.