Nous: Hermes 4 405B

405B

Hermes 4 is a large-scale reasoning model built on Meta-Llama-3.1-405B and released by Nous Research.

Context
131K
Max output
118K
Input price
$1/1M tokens
Output price
$3/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Output Control
Structured Output
JSON Mode

Details

Model IDnousresearch/hermes-4-405b
Provider OpenRouter
Creator nousresearch
Family—
License—
Status—
Typechat
Input modalitiestext
Output modalitiestext
Open weight—
Parameters405B
Architecture—
Context window131K tokens
Max input—
Max output118K tokens
Reasoning tokens—
Knowledge cutoff—
Release date
Sourceofficial

Pricing

Input
$1
Output
$3
Cache write
—
Cache read
$0.2
Batch in
—
Batch out
—

API

GET/v1/models/openrouter/nousresearch/hermes-4-405b