Google just rolled out Deep Think inside the Gemini app , but only for folks on the Ultra subscription. And a handful of mathematicians? This release is trimmed down, faster, and designed for daily…

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Google released Gemini 2.5 Deep Think, an AI model that prioritizes reasoning over speed by taking more time to think through problems. Available to Ultra subscribers, it achieved bronze-level performance at the International Math Olympiad and leads benchmarks in coding and mathematical reasoning. Unlike traditional chatbots that respond instantly, Deep Think uses parallel reasoning and reinforcement learning to test ideas and revise answers, making it ideal for complex problems in mathematics, coding, and design. The model is more cautious and less prone to hallucination but may refuse some harmless requests.

Google Gemini 2.5 Deep Think : The best ever AI is here

So we have a slower model!
Yayyy!

“reasoning over speed” is not what you want for coding, you want models that can iterate fast even if they’re not putting out perfect outputs (and let’s face it, none of them are)

Far from best. Claude is so much better.