AI8 min read
RLHF vs DPO vs GRPO: Modern Alignment Techniques for LLMs
By Sayyed Abrar Akhtar • Published 2025-01-10
Understanding Direct Preference Optimization and Group Relative Policy Optimization in model alignment.
Direct Preference Optimization (DPO) simplifies model alignment by eliminating the separate reward model step required by standard PPO-based RLHF, dramatically stabilizing training pipelines.
Tags:#RLHF#DPO#Machine Learning