Feeding SOTA models blueprint PDFs for walkable 3D renderings: improving but still off

mobileraj · x · 2026-09-23

Inspired by Simon Willison's pelican-on-a-bike test, the author gives each SOTA model a PDF blueprint and asks it to create a 3D rendering they can walk through. Findings: capability is improving — early SOTA models would time out, while current ones usually finish — but floor plans remain grossly inaccurate and often violate physics. A simple, replicable probe for tracking spatial understanding across model generations.

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