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metr.gpt_5_4.horizon_50.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
858c619bbf5d9edd5.7 h (187769)grade A, evidence tier 12026-03-052026-09-101reportedapiapproved2026-09-10T00:51:13.090038Z200aae31902b051source page
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  • 858c619bbf5d9edd {"gpt_5_4": {"p50_horizon_length": {"ci_high": 768.779526, "ci_low": 186.581591, "estimate": 341.735276}, "release_date": "2026-03-05"}}