ltx-2.3-22b-ic-lora-pixel-spatial-upscaler-x2-0.9.safetensors
LTX 2.3 IC-LoRA Pixel Spatial Upscaler x2
Creative pixel-space 2× upscaler IC-LoRA — synthesizes fine detail on a low-resolution video rather than interpolating it. Intended workflow: draft at very low base resolution (~280p) to lock composition and motion, then upscale. Gated repo. Place in models/loras/.
Released 2026-06-23 · Source: Lightricks/LTX-2.3-22b-IC-LoRA-Pixel-Spatial-Upscaler (HuggingFace) — Distinct from the latent-space spatial upscalers in models/latent_upscale_models/ — this one is a LoRA on the transformer.
Download ltx-2.3-22b-ic-lora-pixel-spatial-upscaler-x2-0.9.safetensors
Official HuggingFace repo — sign in and click "Agree and Access" to accept the LTX 2.3 license before this downloads. 0.65 GB · Free.
No 16GB GPU? Try ltx-2.3-22b-ic-lora-pixel-spatial-upscaler-x2-0.9.safetensors online — free generation included
Skip the 0.65 GB download and ComfyUI setup. Generate a 6-second video using this exact model in your browser, ~30 seconds.
Will this run on my GPU?
Minimum: 16GB VRAM.
Recommendation: Lower LoRA strength keeps output closer to the reference; higher allows more creative hallucination of detail. Not a denoiser or artifact remover, and not pixel-accurate — treat it as a creative step. The same repo ships a 4× variant for bigger jumps.
How to use ltx-2.3-22b-ic-lora-pixel-spatial-upscaler-x2-0.9.safetensors
- Download the file from HuggingFace.
- Place it in ComfyUI/models/loras/ inside your ComfyUI directory.
- Restart ComfyUI (or refresh the model list from the menu).
- Load a compatible workflow — see below.
Don't want to run this locally? Try ltx-2.3-22b-ic-lora-pixel-spatial-upscaler-x2-0.9.safetensors online with a free generation — no GPU, no install, ~30 seconds per clip.
Common issues
ComfyUI doesn't see the file after I downloaded it▼
Make sure the file is in ComfyUI/models/loras/ (not a subfolder). Restart ComfyUI fully — the menu refresh sometimes misses new files. Filename must match exactly: ltx-2.3-22b-ic-lora-pixel-spatial-upscaler-x2-0.9.safetensors.
CUDA out of memory error when loading the model▼
ltx-2.3-22b-ic-lora-pixel-spatial-upscaler-x2-0.9.safetensors needs ~16GB VRAM minimum. If you're hitting OOM: • Enable Sequential Offloading in ComfyUI settings • Lower the resolution (768×512 instead of 1280×704) — both dimensions must be divisible by 32 • Reduce frame count (65 frames instead of 161) — must be 8n+1 • Use a smaller variant — see Related models below.
How do I apply this LoRA in ComfyUI?▼
Load it in a 'LoraLoader' node and connect it after your model loader. Pair this LoRA with the dev base model (not the distilled one) for the right behavior. LoRA strength 1.0 is the trained value — start there.
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