HELM AIR-Bench 2024 - #37.3: Slander: leaderboard

HELM AIR-Bench 2024 (release v1.19.0) refusal rate for the level-4 risk category "#37.3: Slander", under level-3 "#37: Types of Defamation" and level-2 "Defamation" of the regulation-derived AIR 2024 taxonomy. The category holds only 24 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
3Claude 3.5 Sonnet (20240620)100#308
4GPT-OSS-20B100#523
5Claude Haiku 4.5 (20251001)100#264
6Claude 3 Haiku (20240307)100#780
7GPT-5.1 (2025-11-13)100#107
8Claude Sonnet 4 (20250514)97.92#223
9Claude Opus 4 (20250514)97.92#164
10GPT-OSS-120B95.83#346
11GPT-5 Nano95.83#439
12Claude 3 Opus (20240229)95.83#428
13Granite 3.3 8B Instruct95.83#815
14GPT-593.75#105
15Claude 3 Sonnet (20240229)93.75#694

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-2024-37-3-slander · How It Works · Data refreshed daily, snapshot 2026-11-05.