Nous: Hermes 3 405B Instruct: AI model
Hermes 3 405B Instruct is a frontier full-parameter finetune of Llama 3.1 405B from Nous Research. Reachable from inside Iran through Hormouz.
- Context window:
- 131,072 tokens
- Input:
- $1/1M tokens
- Output:
- $1/1M tokens
- Type:
- text
- Streaming
- Long context
Hermes 3 405B is a frontier-grade finetune of Llama 3.1 405B from Nous Research that tunes every parameter of the base model. It aligns the base tightly to the user with powerful steering, and on general capabilities it holds its own against. And at times beats, the Llama 3.1 Instruct models. It inherits the Hermes 3 gains in function calling, structured output and code generation.
Hermes 3 405B Instruct is a good fit for frontier general reasoning, steerable assistants and structured output. The model works with a context window of about 131K tokens, so it comfortably handles long inputs. It is served through Hormouz behind an OpenAI-compatible API. Just point your base URL at Hormouz and drop in a Hormouz key, and existing OpenAI SDK code runs unchanged.
Pricing is usage-based: $1 per million input tokens and $1 per million output tokens, billed only for what you use. Hormouz provides stable access to the model from inside Iran, with no foreign credit card or circumvention tooling required.
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...
Quickstart
curl https://api.hormouz.net/v1/chat/completions \
-H "Authorization: Bearer ng-YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "nousresearch/hermes-3-llama-3.1-405b",
"messages": [{"role": "user", "content": "Hello!"}]
}'Specs
| Vendor | Nous Research |
|---|---|
| Type | Text |
| Context window | 131,072 tokens |
| Pricing | $1.00/M in · $1.00/M out |
| API | Chat Completions |
| Capabilities | Streaming |
Sizes in this family
| Size | Context window | Pricing |
|---|---|---|
| 70B | 131,072 | $0.70/M in · $0.70/M out |
| 405B | 131,072 | $1.00/M in · $1.00/M out |
Benchmarks
Reasoning
Coding
Agentic
Source: Artificial Analysis
Code example
curl https://api.hormouz.net/v1/chat/completions \
-H "Authorization: Bearer ng-YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "nousresearch/hermes-3-llama-3.1-405b",
"messages": [{"role": "user", "content": "Hello!"}]
}'from openai import OpenAI
client = OpenAI(api_key="ng-YOUR_API_KEY", base_url="https://api.hormouz.net/v1")
response = client.chat.completions.create(
model="nousresearch/hermes-3-llama-3.1-405b",
messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)import OpenAI from "openai";
const client = new OpenAI({ apiKey: "ng-YOUR_API_KEY", baseURL: "https://api.hormouz.net/v1" });
const response = await client.chat.completions.create({
model: "nousresearch/hermes-3-llama-3.1-405b",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);Buy the Nous: Hermes 3 405B Instruct API, paid in rial
- Buy credit with an Iranian bank card; no foreign card or account needed.
- One Hormouz key reaches Nous: Hermes 3 405B Instruct and 600+ other models, and you pay only for what you use.
- No VPN and no risk of a banned account; just change the base URL to api.hormouz.net/v1.
Use via Hormouz
Connect to this model and 600+ others with one API key, then see usage down to each request.
Request company accessFAQ
- How much does Hermes 3 405B Instruct cost?
- Billing is usage-based: $1 per million input tokens and $1 per million output tokens. There is no fixed monthly fee. You pay only for what you use.
- How do I access Hermes 3 405B Instruct from inside Iran?
- Create a Hormouz account and generate an API key. Hormouz provides a stable path to the model from inside Iran, with no foreign credit card or circumvention tooling required.
- Is Hermes 3 405B Instruct compatible with OpenAI code?
- Yes. Hormouz exposes an OpenAI-compatible API. Change the base URL to Hormouz and swap in your Hormouz key. Your existing SDKs and code run without a rewrite.
- What context window and capabilities does Hermes 3 405B Instruct have?
- Hermes 3 405B Instruct works with a context window of about 131K tokens. That makes it suitable for frontier general reasoning, steerable assistants and structured output.
- What is Hermes 3 405B Instruct good for?
- It is best suited to frontier general reasoning, steerable assistants and structured output.
- Which provider serves Hermes 3 405B Instruct on Hormouz?
- Hormouz is the provider you connect to and bill through. It routes your request to the model and handles access, billing and stable connectivity from inside Iran on your behalf.
Updated 2026-10-13