SkillSafetyBench - Task Success: leaderboard

Metric: Task success (%; mean reward of the original SkillsBench task over the 155 attacked cases, scored by the task's own tests, 1.0 for a fully completed task; each row is a CLI agent harness with a model backend). Source: arxiv.org. Saturation forecast: Around August 2027. 9 models tracked.

Top models

#ModelScore
1GPT-5.5 (Codex)42.6
2Claude Opus 4.6 (Claude Code)40
3GPT-5.4 (Codex)38.7

Interactive version: theaggregate.ai/benchmark?slug=skillsafetybench-task-success · How It Works · Data refreshed daily, snapshot 2026-09-26.