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Compressed KV cache that decodes 1.79x faster at 128K in llama.cpp (Calibrated Eigenbasis)

This story is from 2026-08-26. It is preserved in the archive; the latest stories are on the live feed.

Everyone tells you not to quantize your KV cache, and for naive quantization they're right: it costs quality and at long context it can even cost speed. I spent the last few months building the version that doesn't have that tax, and today the receipts finished, so I'm releasing it. The KV cache li…

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  1. 2026-08-26 01:38 · r/LocalLLM
    Compressed KV cache that decodes 1.79x faster at 128K in llama.cpp (Calibrated Eigenbasis)

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