HarnessAudit-Bench: leaderboard

Agent harness safety on 210 benign multi-agent workflow tasks in eight domains with embedded permissions over tools, resources and inter-agent information flow (HarnessAudit-Bench, Liu et al., 2026). The overall harness safety score multiplies each task's safety adherence rate by a weighted mix of task completion (0.7), action validity (0.15) and perturbation stability (0.15), averaged over tasks, 0-1, higher is better. Each entry is a model run inside one harness: OpenClaw, Claude Code or the Codex CLI.

Metric: Overall harness safety score (0-1; task-level safety adherence gate times weighted task completion, action validity and perturbation stability; 210 tasks in eight domains). Source: arxiv.org. Saturation forecast: Around December 2027. 10 models tracked.

Top models

#ModelScoreOverall rank
1Gemini 3.1 Pro (Preview)0.41#91
2GPT-5.40.32#121
3GLM-5V Turbo0.31#342
4Kimi K2.60.3#173
5Qwen 3.5 Plus0.29#227
6Claude Sonnet 4.60.22#158
7Claude Opus 4.60.21#100

No result here: #1 Claude Fable 5.2, #2 Gemini 4 Carbon, #5 Claude Opus 5.5.

Interactive version: theaggregate.ai/benchmark?slug=harnessaudit-bench · How It Works · Data refreshed daily, snapshot 2026-11-12.