AEC-Bench - Cross-Reference Resolution: leaderboard

Metric: Mean reward (0-100) from the task verifier on the 51 cross-reference-resolution instances (finding cross-references that do not resolve to valid targets) 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
1GPT-5.484.3#76
2Claude Opus 4.679#60
3Claude Sonnet 4.673.9#85
4GPT-5.261#105

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-cross-reference-resolution · How It Works · Data refreshed daily, snapshot 2026-10-11.