KV cache gets QAT too: why this model beats others at fp4 KV cache

stochasticchasm · x · 2026-09-11

An interesting technical nugget: per the shared breakdown, the model in question applied quantization-aware training (QAT) to its KV cache as well — which explains why it performs better than other models at fp4 KV cache precision. Notable engineering insight for low-precision inference deployment.

Related event: New Model's KV Cache QAT and Dropped MTP Spark Debate(4 posts)→

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