Capability gains

Anthropic releases Claude Instant 1.2

Anthropic released Claude Instant 1.2 with improvements in mathematics, coding, reasoning, safety and resistance to hallucination and jailbreaks.

CURRENT ASSESSMENT · REVISION 1
TOWARD DOOM38confidence 96/100

Why it moved the index

The deployed low-latency model gained meaningful general capability while safety training and centralized API access constrained misuse and control difficulty.

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AUDIT TRAIL

Assessment history

  1. R1
    Toward 38 · confidence 96

    New August 2023 exact hosted-model release.

    12 Aug 2026