Hermes 4 405B
by Nousresearch
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 deliberat
Models
Hermes 4 405B
Added 10 July 2026
Overview
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 to use / API access
Call via OpenRouter with model id `nousresearch/hermes-4-405b`.
- openrouter ·
nousresearch/hermes-4-405bDocs
OpenRouter id: nousresearch/hermes-4-405b
Benchmarks
- Intelligence Index (artificial-analysis): 7.5 index
Notes
Hermes 4 405B is listed in the EDNA Models directory from the OpenRouter catalogue.
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