# Hermes 3 Llama 3.1 405B API Pricing

As of October 10, 2026, Hermes 3 Llama 3.1 405B costs $1.00 per 1M input tokens and $3.00 per 1M output tokens from Nebius AI Studio, the lowest of 2 providers. It has a 128,000-token context window and returns up to 128,000 tokens per response.

- Page: https://models.litellm.ai/models/hermes-3-llama-3.1-405b
- LiteLLM model name: `nebius/NousResearch/Hermes-3-Llama-3.1-405B`
- Context window: 128,000 tokens
- Max output: 128,000 tokens
- Added to LiteLLM: July 2025
- Prices updated: October 10, 2026

## Pricing by provider

Token prices in USD per 1M tokens.

| Provider | Model name | Input | Output | Cache read | Per image | Per second | Context |
|---|---|---|---|---|---|---|---|
| Nebius AI Studio | `nebius/NousResearch/Hermes-3-Llama-3.1-405B` | $1.00 | $3.00 | – | – | – | 128K |
| DeepInfra | `deepinfra/NousResearch/Hermes-3-Llama-3.1-405B` | $1.00 | $1.00 | – | – | – | 128K |

## Cost examples

1,000 requests with 2,000 input and 500 output tokens each:

- Nebius AI Studio: $3.50
- DeepInfra: $2.50

100 long-document requests with 100,000 input and 2,000 output tokens each:

- Nebius AI Studio: $10.60
- DeepInfra: $10.20

## Features

Supported: Function calling.

## Use it with LiteLLM

```python
from litellm import completion

response = completion(
    model="nebius/NousResearch/Hermes-3-Llama-3.1-405B",
    messages=[{"role": "user", "content": "Hello!"}],
)
```

## FAQ

### How much does Hermes 3 Llama 3.1 405B cost?

Hermes 3 Llama 3.1 405B costs $1.00 per 1M input tokens and $3.00 per 1M output tokens from Nebius AI Studio, the lowest of 2 providers.

### What is the context window of Hermes 3 Llama 3.1 405B?

Hermes 3 Llama 3.1 405B has a 128,000-token context window and returns up to 128,000 tokens per response.

### Which providers offer Hermes 3 Llama 3.1 405B?

Hermes 3 Llama 3.1 405B is available from 2 providers through LiteLLM: Nebius AI Studio and DeepInfra.

### How do I call Hermes 3 Llama 3.1 405B with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="nebius/NousResearch/Hermes-3-Llama-3.1-405B", or add the model to the LiteLLM proxy's config.yaml and send requests to /v1/chat/completions from any OpenAI client. LiteLLM tracks the cost of every request at the prices on this page.

### What features does Hermes 3 Llama 3.1 405B support?

Hermes 3 Llama 3.1 405B supports function calling.

### When did LiteLLM add Hermes 3 Llama 3.1 405B?

Hermes 3 Llama 3.1 405B was added to LiteLLM's model price file in July 2025.

Source: LiteLLM model price file, https://github.com/BerriAI/litellm/blob/main/model_prices_and_context_window.json