Degraded quality with LTX 2.5

by HarryB - opened 13 days ago

•

I have noticed that running this lora on 2.5, produced reduced quality/fidelity on m y test.
I am using https://github.com/Lightricks/ComfyUI-LTXVideo/blob/master/example_workflows/2.5/LTX-2.5_V2V_ICLoRA_Single_Stage_Distilled.json
with theses model :

📂 ComfyUI/
├── 📂 models/
│   ├── 📂 text_encoders/
│   │      ├── gemma4-12b-with-proj-ltx-2.5-bf16.safetensors
│   │      └── gemma4_e2b_it_bf16.safetensors
│   ├── 📂 loras/
│   │      └── LTX-2.3-22b-IC-LoRA-Clean-Plate-1.0.safetensors
│   ├── 📂 diffusion_models/
│   │      └── ltx-2.5-22b-distilled-transformer-bf16.safetensors
│   ├── 📂 vae/
│   │      └── ltx-2.5-audio-vae-bf16.safetensors
│   │      └── ltx-2.5-video-vae-conv-bf16.safetensors / ltx-2.5-video-vae-bf16.safetensors

Quality drops

Any ideas why this is happening ?

art-alex

LTX.io org 8 days ago

Hey @HarryB ,
Thank you for reporting this.
Are you getting reduced quality compared to LTX-2.3?
If so, can you please provide a reference video, LTX-2.5 result , and LTX-2.3 result run to compare to?

HarryB

6 days ago

Unfortunately I post this video as I am uunder NDA

I have noticed a 2.5 version of the Lora and the quality is back. So I may consider this is compatibility issue ? May be it also the official workflow that differ between 2.3/2.5

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