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Google: Gemini 3.1 Pro Preview

google-gemini-3.1-pro-previewgoogleClosed Source Model$7.000000 / call

Google: Gemini 3.1 Pro Preview

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About Google: Gemini 3.1 Pro Preview

Gemini 3.1 Pro Preview is Google’s frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage across complex workflows. Building on the multimodal foundation...

Technical Specifications

Model ID: google-gemini-3.1-pro-preview
Category: LLM Models
Task: Text Generation
Price: $7.000000 per million tokens
Added: February 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 Google: Gemini 3.1 Pro Preview into your application with a single API call. Get your API key from the pricing page to get started.

import requests
import json

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

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

data = {
        "model_id": "google-gemini-3.1-pro-preview",
        "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}")

View the full API documentation for SDKs, code examples in Python, JavaScript, and more.

Pricing

Google: Gemini 3.1 Pro Preview API costs $7.000000 per million tokens. Pay only for what you use with no minimum commitments. View pricing plans

Use Cases

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

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Google: Gemini 3.1 Pro Preview FAQ