---
title: OpenAI: O3 Mini High API | Text Generation | ModelsLab
description: Build with OpenAI: O3 Mini High API by Openai. Text generation, chat, code, and reasoning. Pay-per-use. Free tier.
url: https://modelslab.com/models/openai/openai-o3-mini-high/api.md
canonical: https://modelslab.com/models/openai/openai-o3-mini-high/api.md
type: product
component: Playground/LLM/Index
generated_at: 2026-04-29T23:53:12.018710Z
---

OpenAI: o3 Mini High
---

 [LLMs.txt](https://modelslab.com/models/open_router/openai-o3-mini-high/llms.txt) [.md](https://modelslab.com/models/openai/openai-o3-mini-high.md)

openai-o3-mini-high openai Closed Source Model $2.750000 / call

OpenAI: o3 Mini High
---

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

### OpenAI: o3 Mini High

openai openai-o3-mini-high

Copy model ID

PricingInput $1.10 / 1M tokens

Output $4.40 / 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)

[VU](https://modelslab.com/models/open_router/cognitivecomputations-dolphin-mistral-24b-venice-edition-free)[Open Router](https://modelslab.com/models/open_router)

 [Venice: Uncensored (free)

Closed Source Model](https://modelslab.com/models/open_router/cognitivecomputations-dolphin-mistral-24b-venice-edition-free)

[TR](https://modelslab.com/models/open_router/thedrummer-rocinante-12b)[Open Router](https://modelslab.com/models/open_router)

 [TheDrummer: Rocinante 12B

Closed Source Model](https://modelslab.com/models/open_router/thedrummer-rocinante-12b)

[SL](https://modelslab.com/models/open_router/sao10k-l3.1-70b-hanami-x1)[Open Router](https://modelslab.com/models/open_router)

 [Sao10K: Llama 3.1 70B Hanami x1

Closed Source Model](https://modelslab.com/models/open_router/sao10k-l3.1-70b-hanami-x1)

[PS](https://modelslab.com/models/open_router/perplexity-sonar-reasoning-pro)[Open Router](https://modelslab.com/models/open_router)

 [Perplexity: Sonar Reasoning Pro

Closed Source Model](https://modelslab.com/models/open_router/perplexity-sonar-reasoning-pro)

[G3](https://modelslab.com/models/together_ai/google-gemma-3-27b-pt)[Together AI](https://modelslab.com/models/together_ai)

 [Gemma 3 27B Pt

Closed Source Model](https://modelslab.com/models/together_ai/google-gemma-3-27b-pt)

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

 [Qwen: Qwen3 VL 30B A3B Instruct

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

[ML](https://modelslab.com/models/open_router/meta-llama-llama-3.2-11b-vision-instruct)[Open Router](https://modelslab.com/models/open_router)

 [Meta: Llama 3.2 11B Vision Instruct

Closed Source Model](https://modelslab.com/models/open_router/meta-llama-llama-3.2-11b-vision-instruct)

[MS](https://modelslab.com/models/together_ai/mistralai-Mistral-Small-24B-Instruct-2501)[Together AI](https://modelslab.com/models/together_ai)

 [Mistral Small (24B) Instruct 25.01

Closed Source Model](https://modelslab.com/models/together_ai/mistralai-Mistral-Small-24B-Instruct-2501)

[OG](https://modelslab.com/models/open_router/openai-gpt-4.1)[Open Router](https://modelslab.com/models/open_router)

 [OpenAI: GPT-4.1

Closed Source Model](https://modelslab.com/models/open_router/openai-gpt-4.1)

[IM](https://modelslab.com/models/open_router/inception-mercury-2)[Open Router](https://modelslab.com/models/open_router)

 [Inception: Mercury 2

Closed Source Model](https://modelslab.com/models/open_router/inception-mercury-2)

[GG](https://modelslab.com/models/open_router/google-gemini-3.1-pro-preview)[Open Router](https://modelslab.com/models/open_router)

 [Google: Gemini 3.1 Pro Preview

Closed Source Model](https://modelslab.com/models/open_router/google-gemini-3.1-pro-preview)

[G4](https://modelslab.com/models/together_ai/google-gemma-4-26B-A4B-it)[Together AI](https://modelslab.com/models/together_ai)

 [Gemma 4 26B A4b It

Closed Source Model](https://modelslab.com/models/together_ai/google-gemma-4-26B-A4B-it)

[XG](https://modelslab.com/models/open_router/x-ai-grok-4)[Open Router](https://modelslab.com/models/open_router)

 [xAI: Grok 4

Closed Source Model](https://modelslab.com/models/open_router/x-ai-grok-4)

[SL](https://modelslab.com/models/open_router/sao10k-l3.1-euryale-70b)[Open Router](https://modelslab.com/models/open_router)

 [Sao10K: Llama 3.1 Euryale 70B v2.2

Closed Source Model](https://modelslab.com/models/open_router/sao10k-l3.1-euryale-70b)

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

 [Mistral: Mistral Nemo

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

[GO](https://modelslab.com/models/together_ai/zai-org-GLM-OCR)[Together AI](https://modelslab.com/models/together_ai)

 [GLM OCR

Closed Source Model](https://modelslab.com/models/together_ai/zai-org-GLM-OCR)

[N8](https://modelslab.com/models/together_ai/nim-mistralai-mixtral-8x7b-instruct-v01)[Together AI](https://modelslab.com/models/together_ai)

 [nim/mistralai/mixtral-8x7b-instruct-v01

Closed Source Model](https://modelslab.com/models/together_ai/nim-mistralai-mixtral-8x7b-instruct-v01)

[MM](https://modelslab.com/models/together_ai/MiniMaxAI-MiniMax-M1-80k)[Together AI](https://modelslab.com/models/together_ai)

 [Minimax M1 80K

Closed Source Model](https://modelslab.com/models/together_ai/MiniMaxAI-MiniMax-M1-80k)

About OpenAI: O3 Mini High
---

OpenAI o3-mini-high is the same model as \[o3-mini\](/openai/o3-mini) with reasoningeffort set to high. o3-mini is a cost-efficient language model optimized for STEM reasoning tasks, particularly excelling in science, mathematics, and...

### Technical Specifications

Model IDopenai-o3-mini-highCategoryLLM ModelsTaskText GenerationPrice$2.750000 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 OpenAI: O3 Mini High 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": "openai-o3-mini-high",
        "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/openai/openai-o3-mini-high/api) for SDKs, code examples in Python, JavaScript, and more.

### Pricing

OpenAI: O3 Mini High API costs $2.750000 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

[Browse LLM Models](https://modelslab.com/models?feature=llmaster) [More from Openai](https://modelslab.com/models/open_router) [View Pricing](https://modelslab.com/pricing)

OpenAI: O3 Mini High FAQ
---

### What is OpenAI: O3 Mini High?

OpenAI o3-mini-high is the same model as \[o3-mini\](/openai/o3-mini) with reasoning\_effort set to high. o3-mini is a cost-efficient language model optimized for STEM reasoning tasks, particularly excelling in science, mathematics, and...

### How do I use the OpenAI: O3 Mini High API?

You can integrate OpenAI: O3 Mini High into your application with a single API call. Sign up on ModelsLab to get your API key, then use the model ID "openai-o3-mini-high" in your API requests. We provide SDKs for Python, JavaScript, and cURL examples in the API documentation.

### How much does OpenAI: O3 Mini High cost?

OpenAI: O3 Mini High costs $2.750000 per million tokens. ModelsLab uses pay-per-use pricing with no minimum commitments. A free tier is available to get started.

### What is the OpenAI: O3 Mini High model ID?

The model ID for OpenAI: O3 Mini High is "openai-o3-mini-high". Use this ID in your API requests to specify this model.

### Does OpenAI: O3 Mini High have a free tier?

Yes, ModelsLab offers a free tier that lets you try OpenAI: O3 Mini High 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 - 2026-04-30*