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TheBurgstall/
tsantsalize

Name: tsantsalize
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TSANTSALIZE — IC-LoRA for LTX-2.3

The Burgstall is back at it with another mighty useless release! This one is called TSANTSALIZE!

What it does

This IC-LoRA shrinks the head of the speaker. That's it. That's the effect.

I tried about 7 different ways (and 7 different training runs) to see if I could get the model to train on both video and audio layers, but apparently that is not possible. It wasn't necessary anyway, as the audio effect is fully doable with just the workflow. So the included workflow has a few simple audio processing nodes that change the voice to match (in my opinion, feel free to tweak) the shrunk head.

NOTE! This was trained mostly on videos of a person "speaking to the camera", so your mileage with any other type of footage will vary.

Examples

BAN — before & after:

LADY — before & after:

Usage

Prompting

The trigger word is simply tsantsalize. You can also try adding "tiny head" or similar to the prompt — it might help.

Strength

In my tests strength 1.2 has been the sweet spot. Anything above that and there will be more identity drift.

Workflow

The ComfyUI workflow is included in this repo (TSANTSALIZE-release_1706.json). It uses:

LTX-2.3-22B base model with the distilled fp8 transformer
IC-LoRA guidance with the first frame as reference
MelBand RoFormer for vocal/instrument separation
A pitch shift (+8 semitones) and highpass filter (350 Hz) on the vocals to match the tiny-head aesthetic

Drop your video in, set the trigger word to "tsantsalize", and you're good to go.

Requirements

ComfyUI
ComfyUI-LTXVideo custom nodes
ComfyUI-KJNodes
ComfyUI-VideoHelperSuite
Base model: ltx-2.3-22b-distilled-1.1_transformer_only_mxfp8_block32.safetensors
Text encoder: gemma_3_12B_it.safetensors

Technical details

Base model: LTX-2.3-22B
Training mode: IC-LoRA (video-to-video, F=1 first-frame conditioning)
LoRA rank: 64, alpha: 64
Target modules: attention layers (q, k, v, out projections) + feed-forward layers
Optimizer: Prodigy with constant schedule
Mixed precision: bf16
Training config: included in ltx2_tsantsalize_h100.yaml

The dataset was fully synthetic.

License

CC BY-NC 4.0

TheBurgstall/tsantsalize