AEC-Bench (Nomic Tools) - Sheet Index Consistency: leaderboard

Metric: Mean reward (0-100) from the task verifier on the 14 sheet-index-consistency instances (comparing sheet index entries against title blocks for mismatches) 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) augmented with Nomic Parse and Nomic Embeddings structured drawing representations; higher is better. Source: arxiv.org. Saturation forecast: Around January 2027. 4 models tracked.

Top models

#ModelScoreOverall rank
1Claude Opus 4.685.5#60
2GPT-5.285#105
3GPT-5.481.9#76
4Claude Sonnet 4.676#85

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-nomic-tools-sheet-index-consistency · How It Works · Data refreshed daily, snapshot 2026-10-11.