Erwin Coumans says coding CUDA/Warp physics sims with "GPT-6-Astra and Opus 5.5" is too much fun

erwincoumans · x · 2026-10-10

Erwin Coumans, creator of the Bullet physics engine, says working on CUDA/Warp physics simulations with what he calls "GPT-6-Astra and Opus 5.5" is "too much fun," promising more soon. The model names don't correspond to known official releases — likely a playful or personal naming.

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