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Capability gains

Gemini 3.1 Pro doubles prior reasoning performance and reaches major platforms

Google DeepMind released Gemini 3.1 Pro in preview across its API, developer tools, Vertex AI, Gemini Enterprise, Gemini app, and NotebookLM, reporting 77.1% on ARC-AGI-2.

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CURRENT ASSESSMENT · REVISION 1
TOWARD DOOM48confidence 80/100

Why it moved the index

A large measured reasoning improvement combined with immediate consumer, developer, and enterprise access advances frontier capability and deployment, while preview status tempers the effect.

Assessment history

  1. R1
    Toward 48 · confidence 80

    New dated primary-source frontier model release absent from durable context.

    11 Aug 2026

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DoomBench social sharing card for Gemini 3.1 Pro doubles prior reasoning performance and reaches major platforms.

  1. DoomBench assesses “Gemini 3.1 Pro doubles prior reasoning performance and reaches major platforms” as evidence moving toward doom, with magnitude 48 and confidence 80 out of 100 in the capability gains category.

  2. The DoomBench assessment of “Gemini 3.1 Pro doubles prior reasoning performance and reaches major platforms” is based on reporting from Google and records the editorial rationale, source quality, attribution, and revision history.

  3. DoomBench summarizes “Gemini 3.1 Pro doubles prior reasoning performance and reaches major platforms” as follows: Google DeepMind released Gemini 3.1 Pro in preview across its API, developer tools, Vertex AI, Gemini Enterprise, Gemini...

    https://www.doombench.com/news/gemini-3-1-pro-doubles-prior-reasoning-performance-and-reaches-major-platforms-2026-02-19