OpenAI engineers: AI-found kernel optimizations cut GPT-5.6 Sol serving cost by 20%
TheTuringPost · x · 2026-09-12
OpenAI engineers Philippe Tillet and Matthew Ferrari explain how models now find bottlenecks and optimize inference themselves — kernel improvements alone cut GPT-5.6 Sol's end-to-end serving cost by 20%. The interview also covers which optimizations are wasted effort and how much models actually understand the systems they tune.
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