Plan2Map: leaderboard
Metric: Mean IoU (%) between the predicted and the held-out reference boundary polygons, times 100, 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; higher is better. Source: arxiv.org. Saturation forecast: Around 2030. 4 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Gemini 3.1 Pro (Preview) | 11.2 |
| 2 | GPT-5.5 Pro | 10.6 |
| 3 | Gemini 3 Flash | 5.3 |
| 4 | Claude Opus 4.7 | 4.4 |
Interactive version: theaggregate.ai/benchmark?slug=plan2map · How It Works · Data refreshed daily, snapshot 2026-09-29.