What is the 'Medium' thinking level in Gemini 3.1 Pro?

It is a new computational mode that provides a mathematically balanced trade-off between output speed and reasoning depth, ideal for tasks too complex for 'Low' but not requiring the full compute of 'High'.

How much data can Gemini 3.1 Pro process at once?

It features a 1-million-token context window, allowing it to process up to 900 pages of PDFs, 8.4 hours of audio, or 1 hour of video in a single prompt.

Is Gemini 3.1 Pro better for coding than previous versions?

Yes, it has a 64K token output limit (up from ~21K), which prevents code from being cut off during large refactoring tasks, and it holds a high Elo on LiveCodeBench.

Can I use Gemini 3.1 Pro for commercial projects?

Yes, it is available via Gemini API on Google AI Studio and Vertex AI with enterprise-grade data privacy options where prompts are not used for training.

Does it support image and video generation?

While 3.1 Pro is the reasoning engine, it integrates with Nano Banana Pro for state-of-the-art image editing and Veo for high-fidelity video generation.

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Large Language Models

Freemium

Gemini 3.1 Pro

Google's flagship multimodal AI with 1M context, 64K output, and a three-tier thinking system for advanced reasoning, coding, and agentic tasks.

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Rating

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4 months ago

Listed

Large Language Models

Multimodal AI

AI Agents

Coding Assistant

Deep Reasoning

Image Generation

Video Generation

Data Analysis

Enterprise AI

Tool information

Provider

Google

Platforms

Web

Android

iOS

API

Languages

English

Spanish

French

German

Chinese

Japanese

Korean

Portuguese

Italian

Hindi

Arabic

API Available

Yes

Added to directory

4 months ago

Last updated

3 months ago

Rating

Not available

Pricing

Freemium

About Gemini 3.1 Pro

What the tool does and who it's for

Gemini 3.1 Pro is Google's most advanced multimodal AI model as of early 2026, designed to handle complex tasks involving deep reasoning and massive data synthesis. Built on a Transformer-based Mixture-of-Experts architecture, it introduces a unique three-tier thinking system (Low, Medium, and High) that allows users to balance compute time with reasoning depth. The model supports a 1-million-token context window with a significantly expanded 64K token output limit, specifically optimized for long-form code refactoring and technical documentation. It excels in agentic workflows, graduate-level scientific reasoning, and multimodal understanding—processing up to 900 images, 8.4 hours of audio, or one hour of video in a single prompt. Integrated across Google Workspace, AI Studio, and Vertex AI, it serves as a sophisticated partner for developers and enterprises seeking high-fidelity problem solving.

Key capabilities

Three-Tier Thinking System: Choose between Low, Medium, or High reasoning modes to optimize for speed or depth.

1M Token Context Window: Ingest massive codebases, long documents, or hours of media in a single session.

Expanded 64K Output: Generates long-form content and full code refactors without truncation issues.

Native Multimodal Ingestion: Analyzes up to 900 images, 8.4 hours of audio, or 1 hour of video simultaneously.

Advanced Agentic Capabilities: Optimized for tool use and complex multi-step planning in autonomous workflows.

Native SVG & 3D Rendering: Directly generates and animates vector graphics and code structures in the chat.

Context Caching: Reduces API costs by up to 75% for frequently used long-context datasets.

Google Workspace Integration: Seamless access within Gmail, Docs, Drive, and Vids for productivity.

High-Fidelity Media Generation: Integrated access to Veo for video and Nano Banana Pro for image generation.

Pricing

Freemium — plans below

Gemini (Free)

$0/mo

Access to Gemini 3.1 Pro (Standard)
Text, image, and code generation
Web and mobile access
Integration with Google apps

Google AI Pro

Gemini API (Pay-as-you-go)

$2/1M tokens

Input: $2.00 per 1M tokens (≤200K context)
Output: $12.00 per 1M tokens (≤200K context)
Higher context (>200K): $4.00 input / $18.00 output
Context caching discounts up to 75%

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