HELM VHELM - Unicorn: leaderboard

Metric: PEM. Source: crfm.stanford.edu. 48 models tracked.

Top models

#ModelScore
1Gemini 2.0 Flash89.9
2Gemini 1.5 Flash (002)89.4
3Gemini 1.5 Pro (002)89.05
4Gemini 2.0 Flash (Preview)88.95
5Gemini 2.0 Pro (Preview 02-05)88.6
6GPT-4.588.25
7Gemini 2.5 Pro (Preview 03-25)87.95
8Gemini 2.0 Flash Lite87.9
9Gemini 2.0 Flash Lite (Preview 02-05)87.65
10O4 Mini (2025-04-16)87.45
11O3 (2025-04-16)87.05
12GPT-4o (2024-11-20)86.75
13GPT-4.1 (2025-04-14)85.7
14GPT-4.1 Mini85.6
15O1 (2024-12-17)84.8

Interactive version: theaggregate.ai/benchmark?slug=helm-vhelm-unicorn · How It Works · Data refreshed daily, snapshot 2026-09-08.