GPQA diamond Leaderboard

GPQA diamond (Graduate-Level Google-Proof Q&A (Diamond)): GPQA Diamond — the hardest 198-question subset of Graduate-level Google-Proof Q&A across biology, chemistry, and physics, authored by PhD-level experts; scored as accuracy (%). PhD-level human experts score ~70% and random guessing ~25%.

Gemini 4 Argon leads GPQA diamond at 95.2. The full leaderboard above lists every recorded measurement, not just the headline number.

194 models have recorded scores on GPQA diamond, spanning a score spread of 95.2.

tensor.news grades GPQA diamond B for integrity (score 73/100), ranking #49 of 65 benchmarks we assess across discrimination, saturation, contamination resistance, harness comparability, and freshness.

Yes — top scores are clustering near the ceiling (saturation ratio 0.03), so GPQA diamond no longer separates leading models well. Treat small gaps at the top with caution.

Its test set is public, so contamination risk is on the table: a high score may partly reflect training-data overlap rather than capability.

Only partly — scores come from a mix of harnesses and protocols, so a head-to-head on GPQA diamond is not fully apples-to-apples.

Every GPQA diamond measurement is source-backed and tagged reproduced, self-reported, or unverified; the underlying record cites arxiv.org/abs/2311.12022.