Nous: Hermes 4 405B (nousresearch/hermes-4-405b) costs $1 per 1M prompt tokens and $3 per 1M completion tokens, has a 131,072-token context window, and supports structured outputs, reasoning and response format. Data updated 2026-10-30.
- Prompt price
- $1 / 1M tokens
- Completion price
- $3 / 1M tokens
- Context
- 131,072 tokens
- Input modalities
- text
- Output modalities
- text
- Tokenizer
- Other
- Instruct type
- —
- Knowledge cutoff
- 2024-08-31
- Hugging Face
- NousResearch/Hermes-4-405B
Last price change: 2026-01-05
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...