SteelBench: leaderboard

Metric: Action accuracy (%; per-worker primary action label against expert-verified ground truth; 1,345 densely annotated clips of real steel-plant CCTV footage (8 frames at 1080p per clip) from six industrial domains, zero-shot structured prompt with the 25-class action taxonomy, site context, PPE definitions and safety rules; provider-default temperature; failed parses count as wrong). Source: arxiv.org. Saturation forecast: Around 2033. 9 models tracked.

Top models

#ModelScore
1Qwen 3.5 122B A10B42.6
2Gemma 4 31B (IT)39.2
3GPT-4o38.8
4Claude Opus 4.737.4
5GPT-5.435.5
6Llama 4 Maverick34.5
7Gemini 2.5 Flash33.6
8Gemini 2.5 Pro29.5
9Nemotron Nano 12B v2 VL27.8

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