This is a LORA that speedup chroma1-hd generation to 4 steps.
The original resource was removed but here is a reupload.
The recomended settings are steps - 4, sampler - heun, scheduler - beta, cgf - 1 or 2
Initial release.
Chroma-Hyper-Flash-Heun-Low-Step-r04-fp32.safetensors