Ngram Module Experiments: Loss Not a Perfect Signal
nrehiew_ · x · 2026-08-27
Regarding the Ngram module (borrowed from DeepSeek Engram), ablations on layer placement showed no clear winner, leading to placement at layer 2 for CPU prefetching. Data suggests loss is not a perfect signal: downstream loss decreases with vocab size, but this does not consistently translate to better evals.
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