Home / All model prices / Nousresearch / hermes-4-405b N Nousresearch
hermes-4-405b OpenRouter price Model 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...
Context window 131,072 tokens
Knowledge cutoff —
Price last verified 2026-09-06
First observed 2026-08-11 Descriptions, capabilities, and tariffs come from the linked source. First-party prices take priority; OpenRouter fallbacks are labelled.
Current price Estimated API value in USD per million tokens, backed by OpenRouter's public Models API.
Input $1
Cached input —
Cache write 5m —
Cache write 1h —
Output $3 Capabilities and formats text frequency penalty include reasoning max tokens presence penalty reasoning repetition penalty response format temperature top k top p Performance references No comparable benchmark data is currently available.
PRICE EVOLUTION Price history Original observation and every later change, including any change of price source.
Original observed price Official price unavailable 2026-08-11
Input: — Cached input: — Cache write 5m: — Cache write 1h: — Output: —
Price change OpenRouter price 2026-08-20
Input: $1 Cached input: — Cache write 5m: — Cache write 1h: — Output: $3
