Optimizing a C collision detection 100x with an LLM

Using an LLM to optimize code: I created a reference implementation of @kevintracy48's collision detection in C, then used gpt-5.5 to optimize it and managed a > 100x speedup from that baseline. Cost ~125M tokens Code and details:I’m excited to finally show off fast and robust differentiable collision detection between pairs of convex primitives! paper:

arxiv.org/abs/2207.00669code:github.com/kevin-tracy/Di…00:00