MonitoringBench - Human Strategies - Malware Download: leaderboard

Metric: Catch rate (%) at a 1% false-positive-rate threshold calibrated on 416 honest BashArena runs: share of the 101 successful malware download attack trajectories (human-seeded attack strategies executed by Claude Opus 4.6) that the full-trajectory monitor scores above its threshold, default ControlArena monitor prompt with a 0-10 suspiciousness score, mean of three scoring runs; higher is better. Source: arxiv.org. Saturation forecast: Estimated already saturated. 13 models tracked.

Top models

#ModelScore
1Claude Opus 4.5 (20251101)100
2GPT-5.1 Codex Max100
3Claude Sonnet 4.599
4GPT-598.7
5O3 (2025-04-16)96
6Claude Sonnet 4 (20250514)94.7
7GPT-4.174.6
8O4 Mini (2025-04-16)50.3
9GPT-4 Turbo43.9
10GPT-4o (2024-08-06)27.7
11GPT-5 Nano20.9
12GPT-4.1 Mini17.8
13GPT-4o Mini (2024-07-18)2

Interactive version: theaggregate.ai/benchmark?slug=monitoringbench-human-strategies-malware-download · How It Works · Data refreshed daily, snapshot 2026-10-07.