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Y Combinator
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Dan Fu
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32 slides
1:50:48
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Y Combinator
· Oct 24, 2026
Why Inference Matters 12× More Than Training
François Chaubard, Dan Fu, Jeff Morgan, Joe Fioti, Liangsheng Yin · Y Combinator
YC Paper Club walks the inference stack from an API request down to GPU kernels. Four talks from Together AI, Ollama, Luminal, and SGLang argue that serving quality, not just training FLOPs, is where most of the compute and the money now sit.
Inference
GPU programming & kernels
KV caching & prefix reuse
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