Plan2Map - Centroid Error: leaderboard
The median distance in metres between the predicted and the reference boundary centroids on Plan2Map (2026), a benchmark for reconstructing planning-record boundaries; lower is better. Frontier vision-language models predict GeoJSON directly from the planning document without tools, on a 40-case stratified subset.
Metric: Median centroid distance in metres between the predicted and the reference boundary, direct VLM-to-GeoJSON prediction from the planning document with no tool access, provider default temperature 1, on the paper 40-case stratified subset of the 208 UK planning records; lower is better. Source: arxiv.org. Saturation forecast: Around August 2027. 4 models tracked.
Top models
| # | Model | Score | Overall rank |
|---|---|---|---|
| 1 | GPT-5.5 Pro | 386 | #34 |
| 2 | Gemini 3.1 Pro (Preview) | 490 | #94 |
| 3 | Gemini 3 Flash | 920 | #164 |
| 4 | Claude Opus 4.7 | 1131 | #79 |
No result here: #1 Claude Fable 5.2, #2 Gemini 4 Carbon, #5 Claude Opus 5.5.
Interactive version: theaggregate.ai/benchmark?slug=plan2map-centroid-error · How It Works · Data refreshed daily, snapshot 2026-11-13.