How much does Hermes 4 405B cost?

Hermes 4 405B is billed pay-as-you-go at $1.10 per 1M input tokens and $3.30 per 1M output tokens. There is no subscription — you only pay for what you use.

What can Hermes 4 405B do?

Hermes 4 405B is Nous Research's chat model, accessible through the Api.Airforce API.

Is Hermes 4 405B free to use?

Hermes 4 405B is a paid, pay-as-you-go model — no subscription, you are only charged for usage.

How do I use Hermes 4 405B via the API?

Hermes 4 405B is OpenAI-compatible. Point any OpenAI SDK at https://api.airforce/v1 and pass the model ID hermes-4-405b with your Api.Airforce API key.

Who makes Hermes 4 405B?

Hermes 4 405B is Nous Research's chat model, served through the unified Api.Airforce gateway alongside 100+ other models.

Nous ResearchPaidOperational

Hermes 4 405B

API model name: hermes-4-405b

Hermes 4 405B is Nous Research's chat model, served on the Api.Airforce unified API. It is priced at $1.10 per million input tokens and $3.30 per million output tokens. That is below the provider's $1.00 official input rate. Access it through the OpenAI-compatible API with one key, alongside 100+ other models on Api.Airforce.

Get an API key View pricing

Pricing

Input / 1M tokens

$1.10

Output / 1M tokens

$3.30

Official input rate

$1.00

Official output rate

$3.00

Api.Airforce price vs. the provider's official rate.

Specifications

Provider: Nous Research
Type: chat model

What is Hermes 4 405B used for?

Chatbots & assistants — conversational AI, drafting, summarizing and Q&A.

Hermes 4 405B vs. similar models

Model	Intelligence	Context	Input / 1M	Output / 1M
Hermes 4 405B	—	—	$1.10	$3.30
Hermes 3 Llama 3.1 405B	—	—	$1.10	$1.10
Hermes 3 Llama 3.1 70B	—	—	$0.77	$0.77
Llama 3.1 8B Instruct	—	—	$0.06	$0.09

Prices are Api.Airforce pay-as-you-go rates per 1M tokens. Context is the maximum input length.

Hermes 4 405B — frequently asked questions

How much does Hermes 4 405B cost?: Hermes 4 405B is billed pay-as-you-go at $1.10 per 1M input tokens and $3.30 per 1M output tokens. There is no subscription — you only pay for what you use.
What can Hermes 4 405B do?: Hermes 4 405B is Nous Research's chat model, accessible through the Api.Airforce API.
Is Hermes 4 405B free to use?: Hermes 4 405B is a paid, pay-as-you-go model — no subscription, you are only charged for usage.
How do I use Hermes 4 405B via the API?: Hermes 4 405B is OpenAI-compatible. Point any OpenAI SDK at https://api.airforce/v1 and pass the model ID hermes-4-405b with your Api.Airforce API key.
Who makes Hermes 4 405B?: Hermes 4 405B is Nous Research's chat model, served through the unified Api.Airforce gateway alongside 100+ other models.

All models·Quickstart·Chat API reference

Use Hermes 4 405B via the API

OpenAI-compatible — point any OpenAI SDK at https://api.airforce/v1 and pass hermes-4-405b as the model.

cURL

curl https://api.airforce/v1/chat/completions \
  -H "Authorization: Bearer $AIRFORCE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "hermes-4-405b",
    "messages": [{ "role": "user", "content": "Hello!" }]
  }'

Python

from openai import OpenAI
client = OpenAI(base_url="https://api.airforce/v1", api_key="$AIRFORCE_API_KEY")
r = client.chat.completions.create(
    model="hermes-4-405b",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(r.choices[0].message.content)

JavaScript

import OpenAI from "openai";
const client = new OpenAI({ baseURL: "https://api.airforce/v1", apiKey: process.env.AIRFORCE_API_KEY });
const r = await client.chat.completions.create({
  model: "hermes-4-405b",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(r.choices[0].message.content);