Updated: Aug 8, 2025
toolEXPERIMENTAL!
Extreme speed-up of Wan 2.2 T2V and I2V with just 4 steps
https://huggingface.co/lightx2v/Wan2.2-Lightning/tree/main/
Update: 25/08/08
The I2V Lora-Upload seem to be broken, re-uploaded it again
Changed some Usage descriptions
Mentioned scheduler/sampler combo
Update: 25/08/07
Added I2V LoRAs
Update: 25/08/05
Added more Infos and LoRAs fix1
Usage
SwarmUI
CFG: 1
Steps: 4
For T2V Use with this at the end of your prompt:
<base> <lora:Wan2.2-Lightning_T2V-A14B-4steps-lora_HIGH_fp16> <refiner> <lora:Wan2.2-Lightning_T2V-A14B-4steps-lora_LOW_fp16>
(adapt the lora filenames to whatever specific filenames you have locally)For I2V, use
<video> <lora:...i2v-high> <videoswap> <lora:...i2v-low>
and of course use the i2v lorasthe I2V Lightning LoRA appears to target 16 fps
General:
1 strength on both
2+2 steps (total 4)
switch at 2 (50%)
Sigma Shift: 5
Sampler: LCM
Scheduler: LTX
You need to be very descriptive, short prompts leading to much more random things.
work best at 81x480x832, 81x832x480, 81x720x1280, 81x1280x720
usage tip first loras (outdated):
0.125 strength on both
4 steps
switch at 2
Did not figured out optimal settings for comfyui or swarmui ... still testing. Let me know! :)
Generation times <3 minutes