---
title: Nous: Hermes 4 70B API | Text Generation | ModelsLab
description: 70B parameter LLM with 131k token context excels in math, coding, STEM, logic, and structured JSON outputs; hybrid reasoning mode toggles fast replies or.
url: https://modelslab.com/models/nousresearch/nousresearch-hermes-4-70b.md
canonical: https://modelslab.com/models/nousresearch/nousresearch-hermes-4-70b.md
type: product
component: Playground/LLM/Index
generated_at: 2026-04-15T00:21:00.492889Z
---

Nous: Hermes 4 70B
---

 [LLMs.txt](https://modelslab.com/models/open_router/nousresearch-hermes-4-70b/llms.txt) [.md](https://modelslab.com/models/nousresearch/nousresearch-hermes-4-70b.md)

nousresearch-hermes-4-70b nousresearch Closed Source Model $0.265000 / call

Nous: Hermes 4 70B
---

Choose a prompt below to get started or type your own message

 Explain quantum computing in simple terms

 Write a Python function to sort a list

 Create a marketing email for a SaaS product

 Compare REST vs GraphQL APIs

Send

### Nous: Hermes 4 70B

nousresearch nousresearch-hermes-4-70b

Copy model ID

PricingInput $0.13 / 1M tokens

Output $0.40 / 1M tokens

API EndpointsOpenAI Compatible

`https://modelslab.com/api/v7/llm/chat/completions`Endpoint

Anthropic Compatible

`https://modelslab.com/api/v7/llm/v1/messages`Messages

`https://modelslab.com/api/v7/llm/v1/messages/count_tokens`Count Tokens

`https://modelslab.com/api/v7/llm/v1/models`Models

Use with Claude Code

cURL Example

ParametersSystem MessageYou are a helpful AI assistant specialized in providing accurate and detailed responses.

Temperature0.7

Max Tokens1000

Top P0.9

Frequency Penalty0

Presence Penalty0

Model Info

Support

Related Models
---

Discover similar models you might be interested in

 [View all LLM Models](https://modelslab.com/models?feature=llmaster)

[ML](https://modelslab.com/models/together_ai/meta-llama-Meta-Llama-3-70B-Instruct-Turbo)[Together AI](https://modelslab.com/models/together_ai)

 [Meta Llama 3 70B Instruct Turbo

Closed Source Model](https://modelslab.com/models/together_ai/meta-llama-Meta-Llama-3-70B-Instruct-Turbo)

[N8](https://modelslab.com/models/together_ai/nim-mistralai-mixtral-8x22b-instruct-v01)[Together AI](https://modelslab.com/models/together_ai)

 [nim/mistralai/mixtral-8x22b-instruct-v01

Closed Source Model](https://modelslab.com/models/together_ai/nim-mistralai-mixtral-8x22b-instruct-v01)

[GG](https://modelslab.com/models/open_router/google-gemma-4-26b-a4b-it)[Open Router](https://modelslab.com/models/open_router)

 [Google: Gemma 4 26B A4B

Closed Source Model](https://modelslab.com/models/open_router/google-gemma-4-26b-a4b-it)

[QQ](https://modelslab.com/models/open_router/qwen-qwen3-30b-a3b-thinking-2507)[Open Router](https://modelslab.com/models/open_router)

 [Qwen: Qwen3 30B A3B Thinking 2507

Closed Source Model](https://modelslab.com/models/open_router/qwen-qwen3-30b-a3b-thinking-2507)

[MM](https://modelslab.com/models/open_router/minimax-minimax-m2-her)[Open Router](https://modelslab.com/models/open_router)

 [MiniMax: MiniMax M2-her

Closed Source Model](https://modelslab.com/models/open_router/minimax-minimax-m2-her)

[T2](https://modelslab.com/models/scb10x/scb10x-scb10x-llama3-1-typhoon2-70b-instruct)[ModelsLab](https://modelslab.com/models/scb10x)

 [Typhoon 2 70B Instruct

Closed Source Model](https://modelslab.com/models/scb10x/scb10x-scb10x-llama3-1-typhoon2-70b-instruct)

[AN](https://modelslab.com/models/open_router/amazon-nova-pro-v1)[Open Router](https://modelslab.com/models/open_router)

 [Amazon: Nova Pro 1.0

Closed Source Model](https://modelslab.com/models/open_router/amazon-nova-pro-v1)

[MM](https://modelslab.com/models/together_ai/MiniMaxAI-MiniMax-M1-40k)[Together AI](https://modelslab.com/models/together_ai)

 [Minimax M1 40K

Closed Source Model](https://modelslab.com/models/together_ai/MiniMaxAI-MiniMax-M1-40k)

[OG](https://modelslab.com/models/open_router/openai-gpt-oss-120b-free)[Open Router](https://modelslab.com/models/open_router)

 [OpenAI: gpt-oss-120b (free)

Closed Source Model](https://modelslab.com/models/open_router/openai-gpt-oss-120b-free)

[XG](https://modelslab.com/models/open_router/x-ai-grok-code-fast-1)[Open Router](https://modelslab.com/models/open_router)

 [xAI: Grok Code Fast 1

Closed Source Model](https://modelslab.com/models/open_router/x-ai-grok-code-fast-1)

[NH](https://modelslab.com/models/open_router/nousresearch-hermes-3-llama-3.1-405b)[Open Router](https://modelslab.com/models/open_router)

 [Nous: Hermes 3 405B Instruct

Closed Source Model](https://modelslab.com/models/open_router/nousresearch-hermes-3-llama-3.1-405b)

[MM](https://modelslab.com/models/open_router/mistralai-mistral-small-2603)[Open Router](https://modelslab.com/models/open_router)

 [Mistral: Mistral Small 4

Closed Source Model](https://modelslab.com/models/open_router/mistralai-mistral-small-2603)

[DD](https://modelslab.com/models/open_router/deepseek-deepseek-chat-v3.1)[Open Router](https://modelslab.com/models/open_router)

 [DeepSeek: DeepSeek V3.1

Closed Source Model](https://modelslab.com/models/open_router/deepseek-deepseek-chat-v3.1)

[ML](https://modelslab.com/models/together_ai/meta-llama-Llama-3.3-70B-Instruct-Turbo)[Together AI](https://modelslab.com/models/together_ai)

 [Meta Llama 3.3 70B Instruct Turbo

Closed Source Model](https://modelslab.com/models/together_ai/meta-llama-Llama-3.3-70B-Instruct-Turbo)

[NN](https://modelslab.com/models/together_ai/nvidia-NVIDIA-Nemotron-3-Super-120B-A12B-FP8)[Together AI](https://modelslab.com/models/together_ai)

 [Nvidia Nemotron 3 Super 120B A12b Fp8

Closed Source Model](https://modelslab.com/models/together_ai/nvidia-NVIDIA-Nemotron-3-Super-120B-A12B-FP8)

[ML](https://modelslab.com/models/together_ai/meta-llama-Llama-3.2-3B)[Together AI](https://modelslab.com/models/together_ai)

 [Meta Llama 3.2 3B

Closed Source Model](https://modelslab.com/models/together_ai/meta-llama-Llama-3.2-3B)

[DV](https://modelslab.com/models/together_ai/deepseek-ai-DeepSeek-V3.2-Exp)[Together AI](https://modelslab.com/models/together_ai)

 [Deepseek V3.2 Exp

Closed Source Model](https://modelslab.com/models/together_ai/deepseek-ai-DeepSeek-V3.2-Exp)

[OG](https://modelslab.com/models/open_router/openai-gpt-5.1-codex-mini)[Open Router](https://modelslab.com/models/open_router)

 [OpenAI: GPT-5.1-Codex-Mini

Closed Source Model](https://modelslab.com/models/open_router/openai-gpt-5.1-codex-mini)

About Nous: Hermes 4 70B
---

Hermes 4 70B is a hybrid reasoning model from Nous Research, built on Meta-Llama-3.1-70B. It introduces the same hybrid mode as the larger 405B release, allowing the model to either...

### Technical Specifications

Model IDnousresearch-hermes-4-70bCategoryLLM ModelsTaskText GenerationPrice$0.265000 per million tokensAddedFebruary 20, 2026

### Key Features

- Chat completion and multi-turn conversation API
- Streaming response with token-by-token output
- Function calling and tool use support
- System prompts and role-based messaging
- JSON mode and structured output

### Quick Start

Integrate Nous: Hermes 4 70B into your application with a single API call. Get your API key from the [pricing page](https://modelslab.com/pricing) to get started.

PythonJavaScriptcURLPHP

```
<code>import requests
import json

url = "https://modelslab.com/api/v7/llm/chat/completions"

headers = {
    "Content-Type": "application/json"
}

data = {
        "model_id": "nousresearch-hermes-4-70b",
        "messages": [
            {
                "role": "user",
                "content": "Hello!"
            }
        ],
        "max_tokens": 1000,
        "key": "YOUR_API_KEY"
    }

try:
    response = requests.post(url, headers=headers, json=data)
    response.raise_for_status()  # Raises an HTTPError for bad responses (4XX or 5XX)
    result = response.json()
    print("API Response:")
    print(json.dumps(result, indent=2))
except requests.exceptions.HTTPError as http_err:
    print(f"HTTP error occurred: {http_err} - {response.text}")
except Exception as err:
    print(f"Other error occurred: {err}")</code>
```

View the [full API documentation](https://modelslab.com/models/nousresearch/nousresearch-hermes-4-70b/api) for SDKs, code examples in Python, JavaScript, and more.

### Pricing

Nous: Hermes 4 70B API costs $0.265000 per million tokens. Pay only for what you use with no minimum commitments. [View pricing plans](https://modelslab.com/pricing)

### Use Cases

- AI chatbots and virtual assistants
- Code generation and developer tools
- Content writing and copywriting automation
- Data analysis, summarization, and extraction

[Learn more about Nous: Hermes 4 70B](https://modelslab.com/nous-hermes-4-70b) [Browse LLM Models](https://modelslab.com/models?feature=llmaster) [More from Nousresearch](https://modelslab.com/models/open_router) [View Pricing](https://modelslab.com/pricing)

Nous: Hermes 4 70B FAQ
---

### What is Nous: Hermes 4 70B?

Hermes 4 70B is a hybrid reasoning model from Nous Research, built on Meta-Llama-3.1-70B. It introduces the same hybrid mode as the larger 405B release, allowing the model to either...

### How do I use the Nous: Hermes 4 70B API?

You can integrate Nous: Hermes 4 70B into your application with a single API call. Sign up on ModelsLab to get your API key, then use the model ID "nousresearch-hermes-4-70b" in your API requests. We provide SDKs for Python, JavaScript, and cURL examples in the API documentation.

### How much does Nous: Hermes 4 70B cost?

Nous: Hermes 4 70B costs $0.265000 per million tokens. ModelsLab uses pay-per-use pricing with no minimum commitments. A free tier is available to get started.

### What is the Nous: Hermes 4 70B model ID?

The model ID for Nous: Hermes 4 70B is "nousresearch-hermes-4-70b". Use this ID in your API requests to specify this model.

### Does Nous: Hermes 4 70B have a free tier?

Yes, ModelsLab offers a free tier that lets you try Nous: Hermes 4 70B and other AI models. Sign up to get free API credits and start building immediately.

---

*This markdown version is optimized for AI agents and LLMs.*

**Links:**
- [Website](https://modelslab.com)
- [API Documentation](https://docs.modelslab.com)
- [Blog](https://modelslab.com/blog)

---
*Generated by ModelsLab - 2026-04-15*