OpenRouter

Hermes 4 405B

Name: Hermes 4 405B
Brand: OpenRouter

Canonical ID: openrouter/nousresearch/hermes-4-405b

More OpenRouter models More hermes family models

Reasoning model for deliberate analysis, multi-step problem solving, and tool use

Reasoning: Yes Tool use: No Open weights

Overview

text

Provider: OpenRouter
Family: hermes
Release date: 2025-08-26
Last updated: 2025-08-26
Input modalities: text
Output modalities: text

Pricing and Limits

Token pricing

Input: $1/1M
Output: $3/1M
Cached input: N/A

Context and output

Context window: 131,072
Max output tokens: 117,964
Qualified ID: openrouter/nousresearch/hermes-4-405b

Model Summary

Hermes 4 405B is a model listing in the OpenRouter provider catalog. It is categorized under the hermes family.

The model supports text modalities across input/output paths. Reported context capacity is 131,072. Pricing is listed at $1/1M input and $3/1M output.

Same Family: hermes

Comparable models in the same family across providers.

Browse family

Model	Provider	Context	Input	Output	Flags
Hermes 2 Pro Llama 3 8B novita-ai/nousresearch/hermes-2-pro-llama-3-8b	Novita AI	8,192	$0.14/1M	$0.14/1M
Hermes 4 405B cortecs/hermes-4-405b	Cortecs	128,000	$0.996/1M	$2.989/1M	Tools
Hermes 4 Large nano-gpt/NousResearch/hermes-4-405b	NanoGPT	128,000	$0.3/1M	$1.2/1M
Hermes 4 Large (Thinking) nano-gpt/NousResearch/hermes-4-405b:thinking	NanoGPT	128,000	$0.3/1M	$1.2/1M
Hermes High nano-gpt/hermes-high	NanoGPT	1,048,576	$0.6/1M	$1.1/1M	Reasoning Tools
Hermes Low nano-gpt/hermes-low	NanoGPT	1,048,576	$0.6/1M	$1.1/1M	Reasoning Tools
Hermes Medium nano-gpt/hermes-medium	NanoGPT	1,048,576	$0.6/1M	$1.1/1M	Reasoning Tools

Hermes 4 405B

Overview

Pricing and Limits

Token pricing

Context and output

Model Summary

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