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NousResearch

Hermes 4 405B

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...

Capabilities:

Input
  • Text input
  • Image input (vision)
  • File input (PDF)
  • Audio input
  • Video input
Output
  • Text output
  • Image output
  • Audio output
Pricing & availability:

  • OpenRouterOpenRouter

    $1 / $3 per M
Sources:
OpenRouterOpenRouter
Share:
Details:

  • NousResearchProvider

    Nous Research

  • Context window

    131K

  • Input price

    $1/M

  • Output price

    $3/M

  • Open weights

    Yes

  • Knowledge cutoff

    Aug 2024

  • Released

    Aug 2025