Harbor Adapters - SWE-bench Multilingual (Terminus-2): leaderboard

SWE-bench Multilingual, GitHub issues from repositories in nine programming languages, here 50 of its 300 tasks: the percentage of issues resolved, judged by unit tests through the official grading harness, 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: Resolved rate (%; 50 tasks, mean of 3 trials). Source: arxiv.org. Saturation forecast: Around February 2027. 8 models tracked.

Top models

#ModelScoreOverall rank
1Claude Opus 4.680#100
2Gemini 3.1 Pro (Preview)76.7#91
3Gemini 3 Flash (Preview)74.7#141
4Claude Sonnet 4.673.3#158
5Claude Haiku 4.568.7#568
6GPT-5.4 (Medium)60.7#121 (GPT-5.4)
7GPT-5 Mini21.3#349
8GPT-5 Nano4.7#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-swe-bench-multilingual-terminus-2 · How It Works · Data refreshed daily, snapshot 2026-11-12.