Harbor Adapters - SkillsBench (Terminus-2): leaderboard

SkillsBench, practical tasks across 11 domains written with curated reference skills, here 77 of its 86: the percentage of tasks that pass the deterministic verifiers, higher is better; the task images place the skills only in other agents' skill folders and Terminus-2 has no skill loader, so this board runs without them being surfaced. Each model runs in Terminus-2, the Harbor framework's bash-only terminal agent with no native web or image tools, at its provider's default settings, so results can differ from the same model in its vendor's own agent; the score is the mean of three trials (Harbor Adapters large-scale evaluation; Shi, Lin et al., 2026).

Metric: Pass rate (%; 77 tasks, mean of 3 trials). Source: arxiv.org. Saturation forecast: Around February 2027. 8 models tracked.

Top models

#ModelScoreOverall rank
1Gemini 3.1 Pro (Preview)37.4#91
2Claude Opus 4.634.6#100
3GPT-5.4 (Medium)31.7#121 (GPT-5.4)
4Claude Sonnet 4.631.1#158
5Gemini 3 Flash (Preview)26#141
6GPT-5 Mini13.2#349
7Claude Haiku 4.512.1#568
8GPT-5 Nano5.4#888

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

Interactive version: theaggregate.ai/benchmark?slug=harbor-adapters-skillsbench-terminus-2 · How It Works · Data refreshed daily, snapshot 2026-11-12.