AEC-Bench - Detail Title Accuracy: leaderboard

Metric: Mean reward (0-100) from the task verifier on the 15 detail-title-accuracy instances (verifying whether detail titles match the drawn content) built from real public-sector construction documents, one trial per instance, where the agent runs in its coding-agent harness (Codex for GPT, Claude Code for Claude) with Bash and command-line PDF tools; higher is better. Source: arxiv.org. Saturation forecast: Around January 2027. 4 models tracked.

Top models

#ModelScoreOverall rank
1Claude Sonnet 4.686.7#85
2GPT-5.460#76
3GPT-5.260#105
4Claude Opus 4.646.7#60

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

Interactive version: theaggregate.ai/benchmark?slug=aec-bench-detail-title-accuracy · How It Works · Data refreshed daily, snapshot 2026-10-11.