YouJiacheng breaks down K3 vs V4.1F KV cache: 14400 vs 890 bytes per token
YouJiacheng · x · 2026-10-26
Responding to z4y5f3's perf modeling claims, YouJiacheng provides the concrete numbers: K3 has 24 MLA layers, each using 600 bytes/token with FP8 KV, totaling 14400 bytes/token, versus V4.1F's 890 bytes/token — revising the claimed 40x KV cache gap down to 16x. Read together with the parent post in this dispute over serving costs.
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