Google: Gemini 3.1 Pro Preview
Model Type
Proprietary Model
API access only
Recommended Use Cases
Try Gemini 3.1 Pro Preview
Gemini 3.1 Pro Preview is Google's upgraded flagship model with significantly improved core reasoning, achieving more than double the reasoning performance of Gemini 3 Pro on complex problem-solving benchmarks.
3.1 Pro is designed for tasks where a simple answer isn't enough, taking advanced reasoning and making it useful for your hardest challenges.
Overview
Released February 19, 2026 in preview, Gemini 3.1 Pro represents the upgraded core intelligence that powers Google's latest Deep Think capabilities. On ARC-AGI-2, which evaluates a model's ability to solve entirely new logic patterns, 3.1 Pro achieved a verified score of 77.1%—more than double the reasoning performance of Gemini 3 Pro.
Key Features
- 77.1% ARC-AGI-2 (more than 2× Gemini 3 Pro)
- Advanced reasoning for complex problem-solving
- Code-based animations: Generate website-ready animated SVGs from text
- Complex system synthesis: Bridge APIs and user-friendly design
- Interactive design: Build immersive 3D experiences with hand-tracking
- Creative coding: Translate themes into functional, atmospheric interfaces
Use Cases
Complex Data Synthesis: Combine multiple data sources and APIs into unified dashboards and visualizations, such as live telemetry systems.
Technical Animation: Generate scalable, code-based SVG animations that remain crisp at any scale with minimal file sizes.
Prototype Development: Build sensory-rich interfaces with 3D visualization, user interaction, and generative audio.
Creative Applications: Transform literary or conceptual themes into functional web experiences that capture atmospheric tone.
When to Use Gemini 3.1 Pro Preview
Choose 3.1 Pro Preview when you need:
- Advanced reasoning for complex, multi-step problems
- Code generation with sophisticated visual output
- System integration and API synthesis
- Creative coding with atmospheric or thematic interpretation
- Tasks where simple answers aren't sufficient
- Access to latest reasoning improvements
Choose Gemini 3 Pro when you need:
- Stable, generally available production deployment
- Established workflows without preview limitations
Choose Gemini 3 Flash when you need:
- Pro-grade reasoning at faster speeds
- Cost-effective high-volume processing
- Everyday tasks in the Gemini app
Choose Gemini 3 Deep Think when you need:
- Maximum reasoning depth for science and research
- Complex mathematical or engineering problems
- Parallel hypothesis exploration
Role in Series
Gemini Pro evolution:
- Gemini 1.0 Pro (Dec 2023): First Pro-tier model
- Gemini 1.5 Pro (Feb 2024): 1M context window
- Gemini 2.0 Pro (Preview): Experimental agentic capabilities
- Gemini 2.5 Pro (Mar 2025): Thinking model with enhanced reasoning
- Gemini 3 Pro (Nov 2025): Vibe coding, state-of-the-art reasoning
- Gemini 3.1 Pro Preview (Feb 2026): 2× reasoning improvement (this model)