gemini-3.1-pro-previewLatest Pro model with enhanced reasoning and multimodal capabilities.
Most recent Pro release
Improved problem solving
Process any input type
Premium outputs
View complete API reference with all parameters and examples.
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Billing: Cost = (input_tokens * input_price + output_tokens * output_price) / 1,000,000
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.
Build intelligent conversational systems to automatically answer user queries and improve service efficiency.
Automatically write articles, emails, ad copy, and other text content to boost productivity.
Assist with code writing, debugging, and code review to accelerate software development.
Understand and analyze unstructured data, extract key insights, and generate summary reports.
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.
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.
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.
We support Stripe (Visa, Mastercard, and other international cards) and Alipay. Credits are available instantly after payment.