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GPQA Diamond
Benchmark
Capability
Google-proof PhD science questions — the reasoning era's exam.
You're looking at a benchmark record: a test the industry uses to measure chips or models — and what it actually tells you.
GPQA's expert-written chemistry, physics and biology questions defeat search (PhDs outside the field score ~34%). Frontier reasoning models went from ~50% (2024) past 90% (late 2025) — a two-year sprint through a benchmark built to be hard.
How this connects to the rest of the stack
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Related
Sources
Record reviewed as of 2026-01-15 — see Methodology.