How do you use Hermes 4 405B?

Hermes 4 405B can be called through OpenRouter's OpenAI-compatible API using the model ID nousresearch/hermes-4-405b. This page includes a ready-to-run curl example and the supported parameter list.

Is Hermes 4 405B free?

Hermes 4 405B is a paid model in the OpenRouter catalog, with separate input and output token pricing shown on this page.

Hermes 4 405B

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Nous ResearchHermes

Hermes 4 405B

Q: What is Hermes 4 405B?

Hermes 4 405B is an AI model from Nous Research in the Hermes series. Agent Mag tracks its context window, pricing, modalities, and supported API parameters on this page.

131K context

$1.00/M input

$3.00/M output

Hermes 4 405B is an AI model from Nous Research built for agent workflows, with support for text input and text output. 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...

What is Hermes 4 405B?

Hermes 4 405B is an AI model from Nous Research that Agent Mag tracks for pricing, context window, modalities, benchmarks, and API compatibility. Builders can use this page to compare Hermes 4 405B against other models for agent workflows and production deployments.

Model ID

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...

Modalities

Input

text

Output

text

Supported Parameters

frequency_penaltyinclude_reasoningmax_tokenspresence_penaltyreasoningrepetition_penaltyresponse_formattemperaturetop_ktop_p

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Hermes 4 405B

What is Hermes 4 405B?

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