Google Launches Gemini 3 Deep Think Mode with Record-Breaking AI Performance for Ultra Subscribers

Dec 05, 2025
Google
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Summary

Google unveils Gemini 3 Deep Think mode exclusively for Ultra subscribers, delivering groundbreaking AI performance with 41.0% on Humanity's Last Exam and 45.1% on ARC-AGI-2 benchmarks while offering enhanced reasoning for complex mathematical, scientific, and logical problems.

Key Points

  • Google launches Gemini 3 Deep Think mode for Google AI Ultra subscribers in the Gemini app, offering enhanced reasoning capabilities for complex math, science and logic problems
  • The new model achieves industry-leading performance with 41.0% on Humanity's Last Exam benchmark and an unprecedented 45.1% on ARC-AGI-2 with code execution
  • Ultra subscribers can access Deep Think mode by selecting 'Deep Think' in the prompt bar and Gemini 3 Pro in the model dropdown within the app

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