GPT-6 Astra builds a physics-accurate 3D Rube Goldberg machine that runs 70 seconds
deedydas · x · 2026-09-06
Deedy shared a demo of asking GPT-6 Astra to build a 3D Rube Goldberg machine — the model produced a physics-accurate contraption that runs continuously for 70 seconds.
What makes it striking is consistency: a long-chain mechanical design where a single physics error anywhere would break the whole run. The attached video shows the full sequence executing end to end.
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