GPT-6 Astra builds interactive 3D Seoul with 267,000 buildings in 43 minutes
DeryaTR_ · x · 2026-09-07
A user built an interactive 3D miniature of the entire city of Seoul with GPT-6 Astra in 43 minutes and 23 seconds.
- Covers all 25 districts with 267,000 simplified building models generated from OpenStreetMap data
- Terrain and building heights exaggerated 4x for visibility; Three.js rendering with OpenFreeMap/AWS Terrain Tiles data
- Rotate, zoom, pan, automated fly-throughs of 14 landmarks, day/sunset/night modes, mobile touch support
The atlas is publicly explorable, showcasing one-shot generation of city-scale 3D scenes.
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