LTX-2.3-Workflows / LTX-2_3-DEV-HQ.json
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Workflows Update 11 May 2026
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"## NOTICE BEFORE USE: In order for the workflow to operate properly, you must load 2 images and an audio file. These will not be used until you select one of the options below anyway. \n\n### t2v_mode = Run in Text to Video mode\n### enable_custom_audio = Load custom audio for the clip\n### enhance_prompt = AI prompt automatic enhancement\n### enable_last_frame = Use start and end frame\n### enable_hq = Enable high quality mode\n### fps = Use range from 24 - 48 frames per second\n### seconds = Define video duration in seconds\n### single_pass = Use single run without upscaler. REQUIRES distill_support to be turned ON!\n### distill_support = Uses a distill lora at 20% strength in stage 1 to stabilize noise when doing single pass. It MUST be enabled when single_pass is ON !\n### native_resolution = Render at native resolution instead of half resolution which is LTX default mode. This significantly increases demand and resources, so use with caution!\n### nvidia_super_upscale = Will upscale output resolution x2 at the final video save output.\n\n### Recommended resolutions:\n- 1280 x 704, 1920 x 1088 in default mode\n- 960 x 544 in single pass with native_resolution + distill_support turned ON.\n\n### NOTE: High quality mode activates LTX multi modal feature and will double up generation time. Additionally, activating distill support lora will also increase generation time.\n\n### Recommended steps:\n- Default = 20 - 30 steps\n- HQ = 15+ steps\n\n## This workflow requires Comfy version 0.17 (or newer) to work properly.\n\n### Width & height settings must be divisible by 32.\n### Frame count must be divisible by 8 + 1, but this is now automatically handled by the workflow. Simply input video length in seconds and fps.\n\n### Running with invalid parameters **will not cause errors**. Instead, the flow will silently choose the closest valid parameters. \n\n### By default, we are using 720p resolution. You can try 1920*1088 if you have a powerful GPU."
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"- Huggingface: [Lightricks/LTX-2.3](https://huggingface.co/Lightricks/LTX-2.3/)\n- Github: [LTX-2](https://github.com/Lightricks/LTX-2)\n\n## LTX-2.3 Prompting Tips\n\n1. **Core Actions**: Describe events and actions as they occur over time \n2. **Visual Details**: Describe all visual details you want to appear in the video \n3. **Audio**: Describe sounds and dialogue needed for the scene\n\n## Report LTX-2.3 Issues\nTo report any issues when running this workflow, [go to GitHub](https://github.com/Lightricks/ComfyUI-LTXVideo/issues)\n\n## Model Links (for Local Users)\n\n**latent_upscale_models**\n\n- [ltx-2.3-spatial-upscaler-x2-1.1.safetensors](https://huggingface.co/Lightricks/LTX-2.3/resolve/main/ltx-2.3-spatial-upscaler-x2-1.1.safetensors)\n\n**checkpoints (pick one of these depending on your hardware capability)**\n\n- BF16: [ltx-2.3-22b-dev.safetensors](https://huggingface.co/Lightricks/LTX-2.3/resolve/main/ltx-2.3-22b-dev.safetensors)\n- FP8: [ltx-2.3-22b-dev-fp8.safetensors](https://huggingface.co/Lightricks/LTX-2.3-fp8/resolve/main/ltx-2.3-22b-dev-fp8.safetensors)\n\n**loras**\n\n- [ltx-2.3-22b-distilled-lora-384-1.1.safetensors](https://huggingface.co/Lightricks/LTX-2.3/resolve/main/ltx-2.3-22b-distilled-lora-384-1.1.safetensors)\n\n**text_encoders**\n\n- [gemma_3_12B_it_fp4_mixed.safetensors](https://huggingface.co/Comfy-Org/ltx-2/resolve/main/split_files/text_encoders/gemma_3_12B_it_fp4_mixed.safetensors)\n\n**vae (for render previews)**\n- [taeltx2_3.safetensors](https://huggingface.co/Kijai/LTX2.3_comfy/resolve/main/vae/taeltx2_3.safetensors)\n## Model Storage Location\n\n```\n๐Ÿ“‚ ComfyUI/\nโ”œโ”€โ”€ ๐Ÿ“‚ models/\nโ”‚ โ”œโ”€โ”€ ๐Ÿ“‚ latent_upscale_models/\nโ”‚ โ”‚ โ””โ”€โ”€ ltx-2.3-spatial-upscaler-x2-1.1.safetensors\nโ”‚ โ”œโ”€โ”€ ๐Ÿ“‚ checkpoints/\nโ”‚ โ”‚ โ”œโ”€โ”€ ltx-2.3-22b-dev-fp8.safetensors\nโ”‚ โ”‚ โ””โ”€โ”€ ltx-2.3-22b-dev.safetensors\nโ”‚ โ”œโ”€โ”€ ๐Ÿ“‚ loras/\nโ”‚ โ”‚ โ””โ”€โ”€ ltx-2.3-22b-distilled-lora-384-1.1.safetensors\nโ”‚ โ”œโ”€โ”€ ๐Ÿ“‚ text_encoders/\nโ”‚ โ”‚ โ””โ”€โ”€ gemma_3_12B_it_fp4_mixed.safetensors\nโ”‚ โ”œโ”€โ”€ ๐Ÿ“‚ vae/\nโ”‚ย ย  โ”‚ โ””โ”€โ”€ taeltx2_3.safetensors\n```\n\n## Report other issues\n\nNote: please update ComfyUI first ([guide](https://docs.comfy.org/installation/update_comfyui)) and prepare required models. Desktop/Cloud will be update after the stable builds; nightly-supported models may not be included yet, please wait for the update.\n\n- Cannot run / runtime errors: [ComfyUI/issues](https://github.com/comfyanonymous/ComfyUI/issues)\n- UI / frontend issues: [ComfyUI_frontend/issues](https://github.com/Comfy-Org/ComfyUI_frontend/issues)\n- Workflow issues: [workflow_templates/issues](https://github.com/Comfy-Org/workflow_templates/issues)"
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