Interpretive Canons (BVerfG) - Grammatical Interpretation: leaderboard

Grammatical interpretation from the interpretive-canons benchmark on decisions of the German Federal Constitutional Court (Ringe, ICML 2026 AI4Law Workshop): does an argument rest on the wording of the provision. Positive-class F1 in percent on 120 held-out sentence pairs, with one expert-written prompt for every model; higher is better.

Metric: Positive-class F1 (%; grammatical interpretation (wortlaut): whether the argument rests on the wording of the provision, sentence-level binary classification in German Federal Constitutional Court decisions; expert-written prompt with worked examples (the same for every model), reasoning models at temperature 1.0; decision-disjoint held-out test split (60% of each subtask, 1:3 positives to negatives)). Source: arxiv.org. Saturation forecast: Estimated already saturated. 4 models tracked.

Top models

#ModelScoreOverall rank
1DeepSeek V4 Pro86.7#181
2MiniMax-M383.9#265
3Gemini 3.5 Flash Lite79.4#300
4DeepSeek V4 Flash78.1#254

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

Interactive version: theaggregate.ai/benchmark?slug=interpretive-canons-bverfg-grammatical-interpretation · How It Works · Data refreshed daily, snapshot 2026-11-12.