Deep Think is a special feature created to handle difficult problems that require deep reasoning. It is part of Google’s advanced AI tools and is currently available only to people who subscribe to Google AI Ultra. This feature is meant for tasks that go beyond everyday questions. Instead of responding quickly like normal AI chat, Deep Think takes extra time to carefully think through a problem step by step. Because of this slow and thoughtful process, answers may take a few minutes to appear, but the goal is to produce a more accurate and well-reasoned response.
Deep Think is especially useful for challenging work in areas like mathematics, science, and logical puzzles. When someone asks a question that requires detailed problem-solving, the system breaks the problem into smaller parts. It considers many possible solutions at the same time and reflects on them before choosing the best answer. This way of thinking, which involves exploring several ideas in parallel, has proven successful in high-level competitions such as the International Mathematical Olympiad. The tool is meant for situations where careful reasoning matters more than speed.
Using Deep Think is straightforward, although it requires the right subscription. To try it, you must open the Gemini app or visit the Gemini website. Inside, you select the Gemini 3 Pro model. Once that model is active, you can switch on the Deep Think mode by tapping the option provided. After that, you simply enter your question—especially one that needs long reasoning or problem-solving—and wait for the system to think it through. If you ever want faster responses, you can switch back to the normal mode at any time.
In short, Deep Think is a helpful tool for people working with complex questions. It takes more time to respond, but that extra time is used to think carefully and offer detailed answers. For students, researchers, or anyone facing tough analytical problems, this feature provides a way to get thoughtful support rather than quick but shallow replies.