Gemini 3.1 Pro User Manual

Gemini 3.1 Pro User Manual. How to use AI and how to create prompts for AI.

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AI User Guide

Gemini 3.1 Pro User Manual
Focus: Gemini 3.1 Pro (Preview / Stable) – 2026 Edition
Released: February 19, 2026
Context Window: Up to 1 Million tokens (native)
Output Limit: Up to 64K tokens
Key Strengths: Advanced multimodal reasoning, abstract & scientific intelligence, agentic workflows
Variants: Gemini 3.1 Pro (standard), with Thinking levels (Low / Medium / High / Max)
Access: Gemini app, Google AI Studio, Vertex AI, Gemini APIThis manual focuses on Gemini 3.1 Pro — Google’s powerful multimodal reasoning model optimized for complex, long-context, and agentic tasks.

Getting Started

• Platforms: gemini.google.com (Advanced), Google AI Studio, Vertex AI, Gemini API.
• Thinking Modes (very important):
  • Low / Medium: Fast responses.
  • High / Max: Deep reasoning (recommended for complex tasks).
• Recommended Settings:
  • Temperature: 0.7–1.0 (creative), 0.0–0.4 (precise/coding).
  • Use structured prompts and explicit instructions.
  • Enable Grounding / Search / Code Execution tools when needed.
  • For best results: Upload files directly (images, video, audio, PDFs, code).

Gemini 3.1 Pro Top 5 Strengths

1. Superior Abstract & Complex Reasoning (Strongest Strength)
Leads on ARC-AGI-2 (77.1%), GPQA Diamond (94.3%), and many hard reasoning benchmarks. Excellent at novel problem-solving and multi-step deduction.

2. Native Multimodal Excellence
Outstanding understanding and synthesis across text + images + video + audio + code. Strong in visual reasoning, video analysis, and cross-modal tasks.

3. Powerful Agentic & Tool-Use Capabilities
Strong performance on agentic benchmarks, terminal workflows, long-horizon execution, and tool orchestration.

4. Advanced Coding & Software Engineering
Competitive on SWE-bench Verified (~80.6%), repository-level understanding, vibe coding, and full-stack development.

5. Massive Long-Context Understanding
Handles up to 1M tokens with strong coherence — ideal for entire codebases, long documents, research synthesis, and sustained projects.

How to use Gemini 3.1 Pro

Prompt Examples:

Complex Abstract Reasoning Task

You are Gemini 3.1 Pro operating at Max Thinking level.

Solve this novel abstract reasoning problem step by step:

[Insert ARC-style or complex logic puzzle here]

Show your full reasoning chain, test multiple hypotheses, and provide the final answer with confidence score.

Scientific / Expert-Level Analysis

Using High/Max Thinking, analyze this graduate-level scientific question:

[Insert GPQA-style question or research problem]

Provide detailed explanation with equations, assumptions, and potential real-world applications.

Multi-Step Deductive Reasoning

Think at Max level.

Given these constraints and data points [paste details], deduce the optimal solution through systematic elimination and creative synthesis.

Novel Problem Solving

Approach this unfamiliar challenge with fresh reasoning (Max Thinking):

[Describe new problem]

Break it down into sub-problems, explore edge cases, and propose innovative solutions.

Logical Puzzle / Strategy Optimization

Max Thinking mode enabled.

Optimize this complex strategy scenario [describe]. Evaluate multiple paths, risks, and provide the best reasoned decision.

Image + Video Analysis

[Upload image(s) or video]

Analyze this visual content in high detail:
- Describe key elements, text, actions, and context
- Extract insights and potential improvements
- Suggest next steps or creative applications

Multimodal Synthesis

[Upload document + images + video]

Synthesize information across all uploaded files. Create a comprehensive summary with cross-modal insights and recommendations.

Design / Visual Reasoning

[Upload UI designs or screenshots]

Evaluate this design for usability, accessibility, and aesthetics. Suggest specific code improvements (React/Tailwind/etc.).

Audio-Visual Understanding

[Upload video with audio]

Transcribe key dialogue, analyze visual actions, identify emotions/tone, and extract actionable insights.

Cross-Modal Creative Task

[Upload reference images]

Create a cohesive concept that combines the style/mood from these visuals with [new requirement].

Agentic Workflow Execution

You are an autonomous agent using Gemini 3.1 Pro at High Thinking.

Goal: [complex multi-step goal]

Plan step-by-step, use available tools (search, code execution, etc.), and execute until complete. Report progress at each major stage.

Tool-Use Heavy Task

Use all available tools iteratively.

Research [topic] → Analyze data → Generate report → Suggest implementation plan.
Show reasoning and tool calls clearly.

Long-Horizon Project Management

Act as a reliable long-horizon agent.

Manage this entire project [description]. Break it into phases, track progress, and adapt as needed over multiple interactions.

Terminal / Computer Use Simulation

Simulate terminal-based workflow to accomplish [technical goal]. Provide exact commands and expected outcomes.

Multi-Agent Orchestration

Simulate a team of specialized agents (Researcher, Coder, Critic, Executor) to complete [project].
Coordinate effectively using your agentic capabilities.

Repository-Level Coding

[Attach or paste large codebase]

Perform full analysis of this repository. Identify issues, suggest refactors, and implement key improvements.

Vibe / Frontend Coding

[Upload design references]

Build a production-ready website that perfectly captures this visual vibe using modern stack [specify].

Full Feature Implementation

Implement a complete [feature] including backend, frontend, tests, and documentation according to these specs [details].

Code Review & Optimization

Review this codebase/PR at High Thinking level. Focus on performance, security, scalability, and maintainability. Provide improved code where needed.

Algorithm Design

Design an efficient algorithm for [problem]. Provide code, complexity analysis, and optimizations.

Entire Codebase / Document Analysis

You have the full context of this large project/document [1M context].

Provide comprehensive summary, key insights, risks, and recommended actions.

Research Synthesis

Synthesize these long documents/research papers [upload/paste]. Identify consensus, gaps, and novel conclusions.

Long-Context Project Planning

With full context awareness, create a detailed roadmap for [complex project] spanning multiple months.

Sustained Conversation Memory

Review our entire conversation history. Summarize key decisions and propose next optimal steps.

Massive Data Processing

Analyze this large dataset/collection [provide access]. Extract patterns, trends, and strategic recommendations.

Best Practices Summary

• Use High / Max Thinking for complex reasoning and agentic tasks.
• Upload files liberally — Gemini 3.1 Pro excels at multimodal input.
• Be explicit with instructions and desired output format.
• Leverage Google tools (Search grounding, Code Execution) for best results.
• Iterate in long sessions thanks to the 1M context window.
• Combine with Google AI Studio / Vertex AI for production workflows.

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AI User Guide