PredicateLongBench - Lexicographic Longest (Synthetic): leaderboard

Metric: Accuracy (%; share of the 100 synthetic word lists of about 128K tokens whose answer is exactly the one word sequence satisfying the predicate, retrieve the longest lexicographically sorted run; up to 16K output tokens including reasoning, an answer past the cap counts as wrong). Source: arxiv.org. Saturation forecast: Around September 2028. 9 models tracked.

Top models

Interactive version: theaggregate.ai/benchmark?slug=predicatelongbench-lexicographic-longest-synthetic · How It Works · Data refreshed daily, snapshot 2026-09-29.