The LCM Scheduler is a powerful tool to increase the speed of your generations
Latent Consistency Models (LCM) are:
a way to decrease the number of steps required to generate an image with Stable Diffusion (or SDXL) by distilling the original model into another version that requires fewer steps (4 to 8 instead of the original 25 to 50).
Practically speaking, it offers a significant and incredible increase in the speed and efficiency of generations on Stable Diffusion 1.5 and SDXL.
Guidelines for Using LCM:
After selecting the LCM Scheduler, you can notice the default values for Sampling Steps and Guidance are set much lower than is normal when using other Schedulers:
Please note the LCM scheduler is only applicable in certain situations as there will be a reduction in quality of the generation that will create undesirable degradation of the image on certain outputs.
Please use caution when adjusting these settings. To test out the response on a particular model you can:
- INCREASE the Sampling Steps by 1 per iteration (we recommend a max of 6 for SDXL)
- DECREASE the Guidance by values of .5. We have found Guidance values of 1.0 and 1.5 effective for our SDXL Concepts.