[KongchangAI]
ConceptOdds Ratio Preference Optimization

ORPO

An alignment method variant in the DPO family that merges supervised fine-tuning with preference alignment into a single training process, requiring no separate reference model.

Timeline (last 90 days)

Oct 23

LLaMA-Factory integrates training algorithms such as incremental pre-training, instruction-supervised fine-tuning (SFT), reward model training (Reward Model), PPO, DPO, KTO, and ORPO.

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Oct 23

ORPO merges SFT and preference alignment into a single stage.

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Oct 14

DPO variants such as KTO, ORPO and SimPO further relax the requirements for paired data or reference models.

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