LyCORIS Chopping #

LoRAs can sometimes include unwanted elements or behaviors during training. “Chopping” allows you to selectively enable or disable different parts of a LoRA model to fine-tune its effects. This can help control style transfer, character consistency, and other attributes.

Quick Solution: Block Weighting #

You can use block weighting tools during generation:

• ComfyUI Inspire Pack - Includes LoRA block weight functionality
• A1111 LoRA Block Weight

Permanent Solution: Chopping #

For a permanent solution, you can use chop_blocks.py by Gaeros to modify the LoRA file itself:

git clone https://github.com/elias-gaeros/resize_lora
cd resize_lora

How to Use #

python chop_blocks.py --model input.safetensors --save_to output.safetensors --vector "1,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1"

Understanding Vector Strings #

Vector strings control which layers are kept or removed using values from 0 to 1:

• 1.0 = Keep layer completely
• 0.0 = Remove layer completely
• Values between = Partial effect

Layer Mapping #

Common Presets #

Character Focus #

1,0,0,0,0,0,0,1,1,0,0,0,1,1,1,1,1,1,0,0,0

by_hamgas #

1,0,0,0,0,0,0,1,1,0,0,0,1,0,1,1,1,1,0,0,0

by_kenket #

1,1,1,1,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1

by_serpent_x #

1,0,0,0,0,1,0,1,1,0,0,0,1,1,1,1,1,1,0,0,0

BEEG LAYERS #

1,0,0,0,1,1,0,1,1,0,1,0,1,1,1,0,0,0,0,0,0

All The Layers #

1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1

All-In #

1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0

All-Mid #

1,0,0,0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0

All-Out (Wolf-Link) #

1,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1

Style Transfer #

1,0,0,0,0,0,0,0,1,0,0,0,1,1,1,0,0,0,0,0,0 

Ringdingding (Stoat) #

1,0,0,0,0,0,0,0,1,0,0,1,1,1,1,0,0,0,0,0,0

Garfield (Character+Style) #

1,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,1,1,0,0,0

Rutkowski #

1,1,1,1,1,1,0,1,1,0,0,0,1,1,1,1,1,1,1,1,1