Epoch AI - GPQA Diamond: leaderboard

Metric: Accuracy (%). Source: epoch.ai. 313 models tracked.

Top models

#ModelScore
1GPT-6 (Max)95.77
2Gemini 3.8 Flash (High)95.39
3Gemini 3.7 Flash (High)94.82
4GPT-5.4 Pro (xHigh)94.6
5Gemini 3.1 Pro (Preview) (High)94.44
6Gemini 3.6 Flash (High)94.13
7Gemini 3.1 Pro (Preview)94.1
8GPT-5.5 (xHigh)94
9Grok 4.6 (High)94
10GPT-5.5 Pro (xHigh)93.92
11Claude Opus 5 (Max)93.88
12GPT-5.6 Sol (Max)93.5
13Grok 4.5 (High)93.43
14GPT-5.6 Terra (Max)93.31
15GPT-5.4 (xHigh)93.3

Interactive version: theaggregate.ai/benchmark?slug=epoch-ai-gpqa-diamond · How It Works · Data refreshed daily, snapshot 2026-09-19.