benchgap
OpenAI · model

GPT-4.5 benchmark scores

As of 2026-10-29, GPT-4.5 (OpenAI) has measured scores on 4 benchmarks and estimated scores on 20 more.

BenchmarkScoreSource
AA-GPQA Diamond67.4%estimated ± 6.3 pp, medium confidence
AA-HLE7.1%estimated ± 5.0 pp, high confidence
CritPt0.4%estimated ± 4.0 pp, high confidence
GPQA Diamond69.7%estimated ± 1.2 pp, high confidence
HLE8.7%estimated ± 6.9 pp, medium confidence
MMLU-Pro81.8%estimated ± 4.0 pp, high confidence
Artificial Analysis Intelligence Index9.6%measured
BBH96.6%estimated ± 2.4 pp, low confidence
GPQA69.5%measured
MMLU90.8%measured
AA-Omniscience Accuracy30.0%estimated ± 1.5 pp, high confidence
MMMLU82.8%estimated ± 1.7 pp, high confidence
AA MMLU-Pro84.8%estimated ± 1.0 pp, low confidence
ARC-AGI-171.7%estimated ± 8.1 pp, low confidence
ARC-AGI-222.4%estimated ± 14.9 pp, low confidence
Vals GPQA Diamond81.3%estimated ± 5.3 pp, low confidence
Vals MMLU-Pro83.9%estimated ± 2.1 pp, medium confidence
HLE w/o tools29.0%estimated ± 4.6 pp, medium confidence
C-Eval88.4%estimated ± 1.0 pp, medium confidence
MMLU-Redux90.1%estimated ± 1.2 pp, medium confidence
SuperGPQA49.5%estimated ± 8.2 pp, low confidence
HealthBench (length-adjusted)53.9%estimated ± 3.3 pp, medium confidence
HealthBench Professional (raw)50.4%estimated ± 8.6 pp, low confidence
SimpleQA62.5%measured