Latent Consistency Model Multistep Scheduler  Overview Multistep and onestep scheduler (Algorithm 3) introduced alongside latent consistency models in the paper Latent Consistency Models: Synthesizing High-Resolution Images with Few-Step Inference by Simian Luo, Yiqin Tan, Longbo Huang, Jian Li, and Hang Zhao.
This scheduler should be able to generate good samples from LatentConsistencyModelPipeline in 1-8 steps.  LCMScheduler  class diffusers.