Gemini 3 Deep Think

2025-12-04 · Publisher : Google · Domain : Artificial Intelligence

Google rolls out Gemini 3 Deep Think mode in the Gemini app for Google AI Ultra subscribers: parallel reasoning on the hardest math, science and logic problems.

What changes

  • Enhanced reasoning mode of Gemini 3 Pro, for complex math, science and logic problems.
  • Parallel reasoning: simultaneous exploration of several hypotheses.
  • Extends the 2.5 Deep Think variants that won gold at the IMO and ICPC World Finals.
  • Activation in the Gemini app: “Deep Think” in the prompt bar and Gemini 3 Pro in the model selector.

### Specifications - Availability: Gemini app, Google AI Ultra subscribers only. - No API or identifier in the blog post. ### Pricing Included in the Google AI Ultra subscription. No API pricing. ### Benchmarks | Benchmark | Score | |---|---| | Humanity's Last Exam (no tools) | 41.0% | | ARC-AGI-2 (with code execution) | 45.1% | | GPQA Diamond | 93.8% | Scores published by the vendor; the 41.0% and 93.8% come from the Gemini 3 launch blog post of November 18. ### Key takeaways Google's most advanced reasoning mode remains reserved for the Ultra tier as of late 2025.

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Tags : LLM, Google, Gemini, Deep Think, Raisonnement