AnalysisAI ModelsNovember 4, 2026

StepX-OPD distills diffusion models to add capabilities and few-step sampling at once

Read original source →arxiv.org

StepX-OPD jointly trains a text-to-image diffusion model to acquire new capabilities and few-step sampling simultaneously, beating sequential approaches while cutting training cost. The method uses multi-teacher on-policy distillation with rollout KL weights and velocity regression.

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