ModelRefs / GPQA Diamond — AI Glossary

GPQA Diamond — AI Glossary

A graduate-level multiple-choice benchmark across physics, chemistry, and biology that expert human PhDs answer correctly only ~65% of the time.

Overview

GPQA Diamond (Google DeepMind, 2023) is the hardest open reasoning benchmark. Questions are deliberately 'Google-proof' — web search does not help. It measures genuine expert-level scientific reasoning rather than recall.

Reference details

Topicevaluation
Also known asGPQA, Graduate-Level Google-Proof Q&A
Last reviewed2026-06-24

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Frequently asked questions

What is GPQA Diamond?

A graduate-level multiple-choice benchmark across physics, chemistry, and biology that expert human PhDs answer correctly only ~65% of the time.

Is GPQA Diamond the same as GPQA?

Yes — GPQA, Graduate-Level Google-Proof Q&A are common aliases for GPQA Diamond.

What concepts are related to GPQA Diamond?

Closely related concepts include evaluation benchmark, mmlu.