Hermes 4 405B
Nous Research released 2025-08-26
$1.50 per million tokens, balanced
No independent quality score.
No benchmark we track has measured this model. That is not the same as measuring it and finding it wanting — we simply cannot rank it, so we do not.
Every price dimension
| Input | $1.00/M |
|---|---|
| Output | $3.00/M |
Independent scores
No independent benchmark has measured this model.
Capability
| Context window | 131K |
|---|---|
| Input modes | text |
| Tool use | no |
| Reasoning | optional |
| Knowledge cutoff | 2024-08-31 |
Provenance
| Price source | openrouter.ai |
|---|---|
| Fetched | 2026-08-24 |
| Quality data | unrated |
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...