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Unit Study Document

Direct Preference Optimization (DPO) & RLHF

7 min readβ€’Visual explainer included

Model Alignment

Alignment is the step that makes a model follow chat prompts instead of just auto-completing paragraphs. We teach the model to choose preferred responses over rejected responses.

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Question

Why is DPO simpler than RLHF?

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Answer

DPO mathematically bypasses the need to train a separate reward model or use PPO reinforcement learning.

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Quiz Practice

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What does alignment try to teach models?

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Card 1 of 1
Question

Why is DPO simpler than RLHF?

Tap card to flip
Answer

DPO mathematically bypasses the need to train a separate reward model or use PPO reinforcement learning.

Mastery: 0%

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