The Nightly Build.

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collection · 3 published
the-build

A small draft model makes Chinchilla 70B decode 2.5× faster without changing its distribution

A small model proposes several tokens, the large one checks them in a single batched pass, and a modified rejection-sampling test keeps or corrects each so the target's exact distribution survives, a gain that pays off only while decoding stays memory-bound at low batch size.

13 min read6 sources
the-build

A grammar masks all but seven of GPT-2's 50,257 tokens to force valid output

A finite-state machine marks the legal next tokens at each step, and every rival token's logit is set to negative infinity before the model samples.

14 min read8 sources
the-build

Rank fusion beats BM25 and the dense index it fuses, on 12 of 13 BEIR datasets

Reciprocal rank fusion sums 1/(60+rank) across two rankings and needs no score normalization, but it lifts nDCG@10 only where BM25 and the dense index disagree.

11 min read9 sources