SGPO is a stage-aware RL fine-tuning method for diffusion models that assigns a different optimization objective to each denoising stage, reducing reward hacking and improving quality, diversity, and convergence speed.
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Explore or Converge? Stage-Guided Per-Step Optimization for Diffusion Models
SGPO is a stage-aware RL fine-tuning method for diffusion models that assigns a different optimization objective to each denoising stage, reducing reward hacking and improving quality, diversity, and convergence speed.