Update app.py

app.py

@@ -675,7 +675,8 @@ DEFAULT_IC_LORA = "Union Control (Depth + Edge)"
 # ─────────────────────────────────────────────────────────────────────────────
 # Download Models
 # ─────────────────────────────────────────────────────────────────────────────
-LTX_MODEL_REPO = "Lightricks/LTX-2.3"
+# LTX_MODEL_REPO = "Lightricks/LTX-2.3"
+LTX_MODEL_REPO = "linoyts/ltx-2.3-22b-fused-union-control" #ltx 2.3 with fused union control lora because it breaks on quantization otherwise
 GEMMA_REPO = "google/gemma-3-12b-it-qat-q4_0-unquantized"
 
 print("=" * 80)
@@ -683,7 +684,8 @@ print("Downloading LTX-2.3 distilled model + Gemma + IC-LoRA...")
 print("=" * 80)
 
 checkpoint_path = hf_hub_download(
-    repo_id=LTX_MODEL_REPO, filename="ltx-2.3-22b-distilled.safetensors"
+    # repo_id=LTX_MODEL_REPO, filename="ltx-2.3-22b-distilled.safetensors"
+    repo_id=LTX_MODEL_REPO, filename="ltx-2.3-22b-fused-union-control.safetensors"
 )
 spatial_upsampler_path = hf_hub_download(
     repo_id=LTX_MODEL_REPO, filename="ltx-2.3-spatial-upscaler-x2-1.0.safetensors"