After launching Gemini 3 in late November, Google is rolling out its latest Deep Think mode to AI Ultra subscribers.

Now available in the Gemini app for anyone shelling out $250 a month for the pro plan, Gemini 3 Deep Think is the supercharged mode of Google's latest large language model (LLM), designed to tackle more complex problems. According to the company, it "uses advanced parallel reasoning to explore multiple hypotheses simultaneously."

The latest update after Gemini 2.5, Gemini 3 Deep Think has a few bragging rights, as Google says it scored 41 percent on the extremely difficult LLM benchmark, Humanity’s Last Exam.

If you're paying for AI Ultra, you can try Gemini 3 Deep Think in the Gemini app by hitting the prompt bar and selecting the dropdown option.

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