Code-QA-Bench: leaderboard

Repository-level code understanding benchmark (Code-QA-Bench; Zhang et al., Baidu, 2026): 528 questions about 10 Python repositories from SWE-bench, each derived from a gold answer verified against the source code, are answered by an agent with file-reading and code-search tools in a copy of the repository stripped of docstrings, comments and documentation. A GPT-5.4 judge scores accuracy, completeness and specificity (0-5 each) against the gold answer and rubric, and the score is their mean scaled to 0-1; higher is better.

Metric: Judge score (0-1; mean of accuracy, completeness and specificity; 528 code-derivable questions, documentation-stripped repository, GPT-5.4 judge). Source: arxiv.org. Saturation forecast: Estimated already saturated. 4 models tracked.

Top models

#ModelScoreOverall rank
1DeepSeek V4 Pro0.89#181
2Claude Opus 4.60.89#100
3Kimi K2.60.87#173
4Gemini 3.1 Pro (Preview)0.77#91

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

Interactive version: theaggregate.ai/benchmark?slug=code-qa-bench · How It Works · Data refreshed daily, snapshot 2026-11-12.