Meta's Switch Distillation Fixes Mid-Training KD Trade-off

A KD study reveals that mid-training forward KL distillation from a post-trained teacher boosts reasoning but harms factual recall. Meta's new Switch Distillation selectively applies logit-based KD based on teacher confidence to avoid the downside.

2026-09-02 ~ 2026-09-03 · 2 related posts