Nous: Hermes 4 405B (nousresearch/hermes-4-405b) is a chat model from openrouter with a 131.1K-token context window; open-weight; capabilities reasoning; input text; output text.
131.1KContext
118.0KMax output
$1$ / 1M in
Pricing
Input
$1 / 1M tokens
Output
$3 / 1M tokens
Currency
USD
Note
Indicative US list price — verify with the vendor.
Indicative US list price — a reference only, verify with the vendor. Source: openrouter. Last verified 2026-07-24.