Gemini 3 Pro
Next-gen reasoning with 1M token context and Deep Think mode.
Gemini 3 Pro, released in November 2025, is Google DeepMind's next-generation flagship model built on a sparse Mixture-of-Experts transformer architecture. It offers native multimodal support for text, images, audio, video, and code, with a 1M token context window and 64K output tokens. Features granular reasoning control via 'thinking_level' parameter and an optional Deep Think mode for complex scientific problems.
Performance Scores
Gemini 3 Pro — Capability Radar
Strengths
1M token context window with 64K output
Deep Think mode for complex science and engineering
Excellent agentic coding and multi-step tool use
Granular control over reasoning depth
Weaknesses
Deep Think mode significantly slower
Higher cost compared to Flash variants
Still in preview for some features
Use Cases
Complex scientific research and analysis
Large-scale codebase understanding
Multimodal document processing
Agentic multi-step workflows
Example Demo
Example Prompts
Code analysis
“Analyze this entire GitHub repository and identify architectural issues, then propose a refactoring plan.”
Multimodal analysis
“Review this research paper video presentation and summarize the methodology, findings, and limitations.”
Advanced reasoning
“Use Deep Think to solve this mathematical proof about topological invariants.”