Nous Research model releases

Release dates for every Hermes and DeepHermes model Nous Research has shipped, newest first. The latest is Hermes 4 - Llama-3.1 405B, released 27 Aug 2025, and 3 of the 7 run on Opper today.

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August 20253 releases
  1. 27 Aug
    Hermes 4 - Llama-3.1 405B7
    Hermes 4 - Llama-3.1 70B7
  2. 26 Aug
    Hermes 4 405B—
March 20251 release
  1. 13 Mar
    DeepHermes 3 - Mistral 24B Preview6
February 20251 release
  1. 13 Feb
    DeepHermes 3 - Llama-3.1 8B Preview5
August 20242 releases
  1. 24 Aug
    Hermes 3 Llama 3.1 405B—
  2. 15 Aug
    Hermes 3 Llama 3.1 70B6

Release dates from vendor announcements and Artificial Analysis, which also supplies the intelligence scores. Follow new releases via RSS.

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