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metr.claude_4_1_opus_inspect.horizon_80.pt

Source: METR time horizons (v1.1) (METR) · METR; analysis code MIT at https://github.com/METR/eval-analysis-public · CSV

METR, Measuring AI Ability to Complete Long Tasks (Horizon v1.1)

idvaluegradeas of datepublished datetieraudited vs reportedextraction methodreview statusretrieved athttp statuscontent hashsupersedes idurlflags
fecd07e2f744467923.5 min (10.547.8)grade A, evidence tier 12025-08-052026-09-101reportedapiapproved2026-09-10T00:51:13.090038Z200aae31902b051source page
Raw snippets and dispute text
  • fecd07e2f7444679 {"claude_4_1_opus_inspect": {"p80_horizon_length": {"ci_high": 47.785951, "ci_low": 10.538456, "estimate": 23.455761}, "release_date": "2025-08-05"}}