SWE-PRBench (Config C): leaderboard

Metric: Composite review score (0-1, scaled to 0-100): per pull request, 0.40 recall + 0.25 precision + 0.15 alignment + 0.10 actionability + 0.05 efficiency minus hallucination, redundancy and excess-plausible penalties, clamped to 0-1 and averaged with weights log(human comments + 1), on a stratified 100-PR sample of SWE-PRBench (40 direct, 40 contextual and 20 latent-difficulty pull requests from active open-source repositories), each model asked at temperature 0 for 4 to 6 line-anchored review comments as JSON, a GPT-5.2 judge matching them to the human reviewers' comments (confirmed, plausible or fabricated), with the diff, execution context, behaviour mapping and test signatures (about 2,500 tokens); higher is better. Source: arxiv.org. Saturation forecast: Around 2030. 8 models tracked.

Top models

#ModelScoreOverall rank
1Mistral Large 313.5#388
2Claude Haiku 4.512.6#271
3Claude Sonnet 4.612.2#85
4DeepSeek V311.8#312
5GPT-4o Mini9.3#588
6Mistral Small9.1#700
7GPT-4o9#333
8Llama 3.3 70B6.5#569

No result here: #3 Claude Opus 5.5, #5 GPT-6 Astra, #8 Claude Fable 5.1.

Interactive version: theaggregate.ai/benchmark?slug=swe-prbench-config-c · How It Works · Data refreshed daily, snapshot 2026-10-11.