w4a8 is a format using 4-bit weights and int8-convrot activations
Requires ComfyUI 0.31.0
int8_convrot VAE needs ComfyUI 0.36.0 for maximum speed benefit
It speeds up VAE decode times by ~2x
ref lora is the difference between fl2va and ref2va, completely experimental, I don't even know if it has a use case at this point.
w6a8 is a format using 6-bit weights and int8-convrot activation, work in progress
minimax_h3_ref2va_pruned_w6a8_g32.safetensor
https://github.com/Comfy-Org/comfy-kitchen/pull/191
minimax_h3_lynnreal_light_vae_int8_convrot.safetensors
https://huggingface.co/stdstu123/LynnReal-Onmi-light-vae
int8-convrot quant of the pruned light VAE, this is about 1.3x faster for decoding.
PDMD loras
Converted and rank reduced from:
https://huggingface.co/pdmd2026/pdmd_2NFE_lora
https://huggingface.co/pdmd2026/pdmd_4NFE_lora