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Nous: Hermes 3 405B Instruct

nousresearch/hermes-3-llama-3.1-405b

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Hermes 3 is a generalist language model with many improvements over Hermes 2, including advanced agentic capabilities, much better roleplaying, reasoning, multi-turn conversation, long context coherence, and improvements across the board.

Hermes 3 405B is a frontier-level, full-parameter finetune of the Llama-3.1 405B foundation model, focused on aligning LLMs to the user, with powerful steering capabilities and control given to the end user.

The Hermes 3 series builds and expands on the Hermes 2 set of capabilities, including more powerful and reliable function calling and structured output capabilities, generalist assistant capabilities, and improved code generation skills.

Hermes 3 is competitive, if not superior, to Llama-3.1 Instruct models at general capabilities, with varying strengths and weaknesses attributable between the two.

Modalities

In / Out Price

$1 / $1per 1M

Context

131K

Released

Aug 16, 2024

Knowledge Cutoff

Dec 2023

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About Nous: Hermes 3 405B Instruct

OpenRouter makes Nous: Hermes 3 405B Instruct by Nous Research available through a unified, OpenAI-compatible API using the model ID nousresearch/hermes-3-llama-3.1-405b. It is served by DeepInfra.

Nous: Hermes 3 405B Instruct accepts text and returns text. It has a 131,072-token context window and a maximum output of 16,384 tokens.

On OpenRouter, Nous: Hermes 3 405B Instruct costs $1.00/M input tokens and $1.00/M output tokens. It was released on August 16, 2024; its knowledge cutoff is December 31, 2023.

More models from Nous Research

  • Hermes 4 70B
  • Hermes 4 405B
  • Hermes 3 70B Instruct

Frequently asked questions

Hermes 3 is a generalist language model with many improvements over Hermes 2, including advanced agentic capabilities, much better roleplaying, reasoning, multi-turn conversation, long context coherence, and improvements across the board.

Hermes 3 405B Instruct costs $1.00/M input tokens and $1.00/M output tokens.

Hermes 3 405B Instruct has a 131,072 token context window. It supports up to 16,384 completion tokens.

The Hermes 3 405B Instruct endpoint shown on this page does not accept tools, so function calling is unavailable there. It also supports structured outputs via a JSON schema in response_format.

Hermes 4 70B, Hermes 4 405B and Hermes 3 70B Instruct are other text models from Nous Research.

Hermes 3 405B Instruct was released on August 16, 2024. Its knowledge cutoff is December 31, 2023.