# FewStepRL: Fine-tuning Few-step Diffusion Models with Reinforcement Learning

> Source: <https://aiflash.com/news/149020/>
> Published: 2026-11-10 07:00:31+00:00

Reinforcement learning (RL) has become a standard post-training method for diffusion models, but most RL objectives roll out the current policy at every iteration, and with a many-step sampler these rollouts typically dominate the cost of training. Few-step models cut this cost, yet they model an av