Harbor Adapters - GAIA (Terminus-2): leaderboard

GAIA, multi-step assistant questions that need browsing, file handling and tools, all 165 validation tasks: accuracy in percent by normalized exact match, 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 (%; 165 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)67.7#91
2Claude Opus 4.661.2#100
3Gemini 3 Flash (Preview)56.8#141
4Claude Sonnet 4.652.9#158
5GPT-5.4 (Medium)41.4#121 (GPT-5.4)
6Claude Haiku 4.531.3#568
7GPT-5 Mini25.3#349
8GPT-5 Nano16.4#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-gaia-terminus-2 · How It Works · Data refreshed daily, snapshot 2026-11-12.