LTX 2.3 Outpainting LoRA
This is a ComfyUI workflow built to run the LTX-2.3 22B model alongside the IC-LoRA Outpaint module created by oumoumad. It allows you to expand and outpaint both still images and existing video clips.
✓ 100% free — download the workflow and run it locally.Requirements
- ComfyUI (portable or desktop), updated to a recent build
- GGUF builds are included — pick the quantisation that fits your VRAM
- 1 custom node(s), listed below
- NVIDIA GPU recommended; see the notes for model-specific VRAM guidance
Model downloads
- ltx-2.3_text_projection_bf16.safetensors https://huggingface.co/Kijai/LTX2.3_comfy/tree/main/text_encoders
- gemma_3_12B_it_fp8_scaled.safetensors https://huggingface.co/Comfy-Org/ltx-2/tree/main/split_files/text_encoders
- LTX23_video_vae_bf16.safetensors https://huggingface.co/Kijai/LTX2.3_comfy/tree/main/vae
- ltx-2.3-22b-dev-Q3_K_S.gguf https://huggingface.co/unsloth/LTX-2.3-GGUF/tree/main
- ltx-2.3-22b-distilled-lora-dynamic_fro09_avg_rank_105_bf16.safetensors (LoRA) https://huggingface.co/Kijai/LTX2.3_comfy/tree/main/loras
- ltx-2.3-22b-distilled-lora-384.safetensors (LoRA) https://huggingface.co/Lightricks/LTX-2.3/tree/main
- ltx-2.3-22b-ic-lora-outpaint.safetensors (LoRA) https://huggingface.co/oumoumad/LTX-2.3-22b-IC-LoRA-Outpaint/tree/main
- LTX-2.3 22B Diffusion Models https://huggingface.co/Kijai/LTX2.3_comfy/tree/main/diffusion_models
Custom nodes
- ComfyUI Manager Command to install requirements:.\python_embeded\python.exe -m pip install -r .\ComfyUI\custom_nodes\ComfyUI-Manager\requirements.txt https://github.com/ltdrdata/ComfyUI-Manager
Setup steps
- ⚙️ How to Use & Configurations
- For T2V: Set the bypass_i2v node to True. (Note: The Load Image node still requires an image input to run the workflow, but it will be bypassed and will not affect the final video).
- For I2V (Outpainting): Set the bypass_i2v node to False and upload your reference image or video frame into the Load Image node.
- Prompts: Use detailed, descriptive positive prompts to guide the outpainted areas.
- Resolution: Adjust your width and height carefully. Higher resolutions directly increase VRAM usage.
Notes & tips
- 🔗 Links & Resources: 1-Click Installer: If you want to skip downloading the models and nodes manually, I have created a portable Windows 1-Click Installer that sets up this exact environment. You can find it on my Patreon: Link to Patreon Post
More resources
- https://youtu.be/NDkJpj6hYwk
- 1-Click Installer: If you want to skip downloading the models and nodes manually, I have created a portable Windows 1-Click Installer that sets up this exact environment. You can find it on my Patreon: Link to Patreon Post https://www.patreon.com/posts/155654936
Want the 1-click version?
Skip the manual model downloads and node installs — get a ready-to-run installer, or unlock all 75+ with Local Lab Pro.