Same Prompt Showdown: Opus 5.5 vs GPT 6 Astra Build Real-Time 3D Sakura Valley
dotey · x · 2026-09-23
A blogger stress-tested Opus 5.5 and GPT 6 Astra with an identical, demanding prompt: build a fully interactive, real-time 3D Japanese cherry blossom valley webpage.
The prompt's constraints were notably strict:
- Modern high-fidelity voxel art style, explicitly banning retro pixelation and parallax-background fakes
- Full foreground/midground/background composition: ancient sakura tree, winding river with a red wooden bridge, village, tea house, shrine, and distant snow peaks
- Perspective camera instead of isometric sandbox view, with visual quality prioritized over feature count
Both generated webpages are publicly accessible for direct side-by-side comparison, making this a useful benchmark of how the two frontier models handle complex 3D scene generation and aesthetics.
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