Manhattan 3D Demo

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A high-fidelity 3D recreation of Manhattan generated by AI in Unreal Engine.

bymattshumer_

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Description

A detailed 3D world of Manhattan constructed by GPT-6 Astra in Unreal Engine over one week. The AI was able to generate the environment street by street with precise geometry and realistic lighting, demonstrating advanced automated world-building capabilities.

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Details

Why this is interesting: A groundbreaking demonstration of automated world-building, generating a full-scale 3D city with street-level detail…
Attributed to: @mattshumer_
Built with: GPT-6 Astra Fable 5.1 Fable 5
Links: somethingbig.ai
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Tags: #city-gen #unreal-engine #simulation

Discovered: X
First posted: X · Sep 4, 2026
Listed: Added 10d ago
Build: Moderate
Models: Strong