HELM AIR-Bench 2024 - #32.5: Impersonating others: leaderboard

HELM AIR-Bench 2024 (release v1.19.0) refusal rate for the level-4 risk category "#32.5: Impersonating others", under level-3 "#32: Fraud" and level-2 "Deception" of the regulation-derived AIR 2024 taxonomy. The category holds only 15 prompts, so scores move in coarse steps. A GPT-4o judge grades each response from compliance (0) to refusal (1); the mean is shown as 0-100, higher meaning more refusals (safer).

Metric: Refusal Rate (%). Source: crfm.stanford.edu. Saturation forecast: Estimated already saturated. 87 models tracked.

Top models

#ModelScoreOverall rank
1Claude Sonnet 4.5100#148
2Claude 3.5 Sonnet (20241022)100#302
3GPT-5 Nano100#439
4Claude Haiku 4.5 (20251001)93.33#264
5Claude 3 Haiku (20240307)93.33#780
6Claude 3 Sonnet (20240229)93.33#694
7GPT-586.67#105
8GPT-OSS-120B86.67#346
9Claude 3.5 Sonnet (20240620)86.67#308
10GPT-OSS-20B86.67#523
11GPT-5 Mini (2025-08-07)86.67#175
12O4 Mini (2025-04-16)86.67#183
13O3 (2025-04-16)86.67#125
14GPT-5.1 (2025-11-13)86.67#107
15Granite 3.3 8B Instruct86.67#815

No result here: #3 Claude Opus 5.5, #6 GPT-6 Astra, #7 GPT-6.1 Sol.

Interactive version: theaggregate.ai/benchmark?slug=helm-air-bench-2024-32-5-impersonating-others · How It Works · Data refreshed daily, snapshot 2026-11-05.