Gemini 3.1 Pro Preview
gemini-3.1-pro-previewLatest Pro model with enhanced reasoning and multimodal capabilities.
Latest Pro
Most recent Pro release
Enhanced Reasoning
Improved problem solving
Multimodal
Process any input type
High Quality
Premium outputs
API Documentation
View complete API reference with all parameters and examples.
Full API Documentation
View complete API reference with streaming, thinking, and more.
Pricing
Billing: Cost = (input_tokens * input_price + output_tokens * output_price) / 1,000,000
About Gemini 3.1 Pro Preview
Gemini 3.1 Pro Preview is a Large Language Model API provided by Google. Latest Pro model with enhanced reasoning and multimodal capabilities. Through API Models platform, you can access this model via a unified API at prices significantly lower than official rates. Current pricing: Input: $0.442, Output: $2.648 per 1M tokens.
Key Features
- Latest Pro -- Most recent Pro release
- Enhanced Reasoning -- Improved problem solving
- Multimodal -- Process any input type
- High Quality -- Premium outputs
Use Cases
Chatbot & Customer Support
Build intelligent conversational systems to automatically answer user queries and improve service efficiency.
Content Generation
Automatically write articles, emails, ad copy, and other text content to boost productivity.
Code Assistant
Assist with code writing, debugging, and code review to accelerate software development.
Data Analysis
Understand and analyze unstructured data, extract key insights, and generate summary reports.
Why API Models
- Unified API -- One API key to access all models, no need to register on multiple platforms
- Cost Savings -- 60-95% cheaper than official pricing, ideal for indie developers and startups
- Instant Access -- Start using immediately after signup, supports Stripe and Alipay payments
- Full Documentation -- Detailed API docs with code examples in cURL, Python, and Node.js
Frequently Asked Questions
How much does Gemini 3.1 Pro Preview cost?
Gemini 3.1 Pro Preview is available through API Models at: Input: $0.442, Output: $2.648 per 1M tokens. This is up to 95% cheaper than official pricing.
How to use Gemini 3.1 Pro Preview API?
Sign up at API Models, get your API key, and call our unified API endpoint. We provide detailed API documentation with code examples in cURL, Python, and Node.js.
What is the difference between API Models and the official Google API?
API Models offers the same Gemini 3.1 Pro Preview model at 60-95% lower cost through our aggregation platform. We provide a unified API interface so you do not need separate accounts for each provider - one API key to access all models.
What payment methods are supported?
We support Stripe (Visa, Mastercard, and other international cards) and Alipay. Credits are available instantly after payment.