Perplexity's 4B decider model distills from its 27B sibling using the same training recipe

antoine_chaffin · x · 2026-10-17

antoinechaffin details the 4B decider model: it shares all design decisions with the 27B — attention schema and training recipe — with the only difference being that it learns from the larger model's signal (distillation), making it exceptionally strong at its scale.

Related event: Perplexity Open-Sources pplx-decider v1.2 in 27B and 4B Sizes with Up to 5x Faster Inference(4 posts)→

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