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SpaceXAI unveils Grok 3 and Grok 3 mini reasoning models

SpaceXAI unveiled Grok 3 and Grok 3 mini, beta reasoning models trained with large-scale reinforcement learning and ten times the compute of its prior generation, with user rollout beginning.

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CURRENT ASSESSMENT · REVISION 1
TOWARD DOOM67confidence 96/100

Why it moved the index

The release materially advanced reasoning, coding and test-time compute while beginning deployment to users. Grok 3 Think and mini Think are treated as reasoning modes of the two named models, not invented additional immutable checkpoints.

Assessment history

  1. R1
    Toward 67 · confidence 96

    New February 2025 release of two exact model tiers with no durable identity collision.

    12 Aug 2026

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  1. DoomBench assesses “SpaceXAI unveils Grok 3 and Grok 3 mini reasoning models” as evidence moving toward doom, with magnitude 67 and confidence 96 out of 100 in the capability gains category.

  2. The DoomBench assessment of “SpaceXAI unveils Grok 3 and Grok 3 mini reasoning models” is based on reporting from SpaceXAI and records the editorial rationale, source quality, attribution, and revision history.

  3. DoomBench summarizes “SpaceXAI unveils Grok 3 and Grok 3 mini reasoning models” as follows: SpaceXAI unveiled Grok 3 and Grok 3 mini, beta reasoning models trained with large-scale reinforcement learning and ten times the compute of its...

    https://www.doombench.com/news/spacexai-unveils-grok-3-and-grok-3-mini-reasoning-models-2025-02-19