Google Rolls Out Gemini 3 Deep Think Mode with Strongest Reasoning Capabilities

Key facts

• Google has started rolling out Gemini 3 Deep Think mode to Google AI Ultra subscribers using the Gemini app.
• The feature is designed for demanding maths, science and logic tasks, supported by advanced parallel reasoning.
• CEO Sundar Pichai highlighted how the new mode can handle highly complex tasks, calling it a feature that “brings our strongest reasoning capabilities yet.”
• Deep Think mode is built for tough maths, science and logic problems that push the limits of current AI systems.
• Gemini 3 Deep Think leads key benchmarks such as Humanity’s Last Exam at 41.0% (without tools) and ARC-AGI-2 at 45.1% (with code execution).
• Google attributes this performance to advanced parallel reasoning, allowing the model to test several ideas at once.
• With Deep Think mode, Gemini uses iterative rounds of reasoning, resulting in more refined, nuanced code that helps you visualize, prototype and experiment with noticeably richer detail.”