Opus rebuilds San Francisco in Unreal Engine, with Jev powering everything in it
MatthewBerman · x · 2026-09-23
Matthew Berman had Opus 5.5 recreate the city of San Francisco in Unreal Engine, then used Jev to power everything inside it — people, pets, cars, traffic, literally everything. The demo showcases how far frontier models can go in generating and animating complex 3D simulations end to end.
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