Harbor Adapters - Seal-0 (Terminus-2): leaderboard

Seal-0, search-augmented factual questions whose web evidence is conflicting or misleading, all 111: accuracy in percent graded by an LLM judge (Claude Haiku 4.5 by default, a model that is also on this board), higher is better. 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: Accuracy (%; 111 questions, LLM judge, mean of 3 trials). Source: arxiv.org. Saturation forecast: Around February 2027. 8 models tracked.

Top models

#ModelScoreOverall rank
1Gemini 3.1 Pro (Preview)42#91
2Gemini 3 Flash (Preview)39.3#141
3Claude Opus 4.639#100
4Claude Sonnet 4.634.2#158
5GPT-5.4 (Medium)27.6#121 (GPT-5.4)
6GPT-5 Mini19.2#349
7Claude Haiku 4.56#568
8GPT-5 Nano4.8#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-seal-0-terminus-2 · How It Works · Data refreshed daily, snapshot 2026-11-12.