SFT is cast as a special case of implicit reward learning, and a slower SFT learning rate improves downstream DPO/SimPO results by up to 25% relative win rate.
LIMA: less is more for alignment
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Implicit Reward as the Bridge: A Unified View of SFT and DPO Connections
SFT is cast as a special case of implicit reward learning, and a slower SFT learning rate improves downstream DPO/SimPO results by up to 25% relative win rate.