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license: other
license_name: faipl-1.0-sd
license_link: https://freedevproject.org/faipl-1.0-sd/

This repository will contains the needed safetensors to upgrade SDXL models based on Illustrious XL when new versions are released.

Since a lot of SDXL models are now based on Illustrious XL, each time a new version is released, it is painful to "upgrade" our merged models to benefit from the new capabilities.

Here, i'll store my "helpers" for my own method of upgrade:

  • Replace the CLIP of the model with the new CLIP using a 0.8~0.9 weighted sum (so replacing it with most of the new CLIP but still keeping a bit of the original model)
  • Merge provided LoRAs at preferred strength to update the UNET (the LoRAs are UNET only and built using SVD with Kohya_ss script using Illustrious checkpoints)

Provided safetensors (for now):

  • Illustrious XL V2.0 CLIP: illus2-clip.safetensors
  • V0.1 to V1.0 UNET LoRA: ZeroOne_To_OneZero.safetensors
  • V1.0 to V2.0 UNET LoRA: OneZero_To_TwoZero.safetensors

Example procedure to upgrade a model based on V0.1 to V2.0:

  • Replace the CLIP using python script (will be provided later)
  • Merge both LoRAs at strength 0.8 (using Kohya_ss Pluslora.py)