Google has unveiled Gemini 3 Deep Think, an advanced reasoning mode for its AI platform, marking a major leap in AI’s analytical and multi-step reasoning capabilities. Now available to Google AI Ultra subscribers, this mode is designed to tackle complex scientific, mathematical, and logical problems with unprecedented accuracy.
Google is taking artificial intelligence to the next level with the launch of Gemini 3 Deep Think. Announced on Thursday, the feature represents the company’s push toward AI that can handle deeply analytical tasks, similar to top-tier human problem solvers.
Described as its “most advanced reasoning mode yet,” Deep Think excels in fields like mathematics, logic, and science, providing richer and more structured answers to complicated queries. Google positions it as a significant milestone for the Gemini ecosystem, catering to researchers, professionals, and anyone seeking AI capable of genuine reasoning.
According to Google, Gemini 3 Deep Think can process multiple lines of reasoning in parallel, enabling it to explore different possible solutions before selecting the most accurate or logical one. This parallel-processing capability gives it an edge over previous versions, especially when addressing multi-step problems that demand precision and context retention.
In recent performance benchmarks:
Gemini 3 Deep Think scored 41.0% on the notoriously difficult “Humanity’s Last Exam” benchmark, surpassing all previous AI models.
When combined with code execution capabilities, it achieved 45.1% on ARC-AGI-2, which Google calls “an unprecedented milestone” in automated logical reasoning.
A Google blog post highlighted that these achievements make Gemini 3 Deep Think the most capable reasoning system the company has ever developed. This new version builds upon the successes of Gemini 2.5 Deep Think, which earlier this year had achieved human-level results in competitions like the International Mathematical Olympiad and the ICPC World Finals.
Google emphasizes that the goal is to move beyond chat-based AI and create models capable of solving real-world scientific and analytical challenges, offering not just answers but explanations that make logical sense.
The mode is already live for Ultra-tier subscribers within the Gemini app. Users can activate it by:
Selecting the “Deep Think” option in the prompt bar
Choosing Gemini 3 Pro as the model
Deep Think works seamlessly across devices, allowing users to test its advanced reasoning capabilities on both simple and highly technical queries.
The official Gemini account on X (formerly Twitter) announced:
“Gemini 3 Deep Think is here. Deep Think is our most advanced reasoning mode that explores multiple hypotheses simultaneously to give you an even more sophisticated output.”
Gemini 3 Deep Think enhances Gemini 3, which debuted last month as Google’s flagship AI system, outperforming Gemini 2.5 Pro, previously regarded as the company’s most capable model for creative and professional workflows.
With the addition of Deep Think, Gemini 3 aims to serve as an intelligent co-pilot for researchers, developers, and students tackling multi-step logic problems or computationally intensive tasks.
Industry observers note that the rollout signals Google’s determination to reclaim leadership in AI innovation, especially amid competition from OpenAI, Anthropic, and other reasoning-focused AI developers. The company is emphasizing that the future of AI will rely not only on generating text or images but on structured, multi-layered thinking.