{ "id": "7f5e0c56-93b4-4937-b7f2-efd0f1853e33", "revision": 0, "last_node_id": 153, "last_link_id": 367, "nodes": [ { "id": 96, "type": "MarkdownNote", "pos": [ 400, 3790 ], "size": [ 400, 150 ], "flags": { "collapsed": false }, "order": 0, "mode": 0, "inputs": [], "outputs": [], "title": "About Size", "properties": {}, "widgets_values": [ "Width & height settings must be divisible by 32 + 1. \nFrame count must be divisible by 8 + 1. \n\n\nRunning with invalid parameters **will not cause errors**. Instead, the flow will silently choose the closest valid parameters. \n\nBy default, we are using 720p resolution. You can try 1920*1088 if you have a powerful GPU." ], "color": "#222", "bgcolor": "#000" }, { "id": 75, "type": "SaveVideo", "pos": [ 900, 3230 ], "size": [ 820, 470 ], "flags": { "collapsed": false }, "order": 3, "mode": 0, "inputs": [ { "name": "video", "type": "VIDEO", "link": 350 } ], "outputs": [], "properties": { "cnr_id": "comfy-core", "ver": "0.5.1", "Node name for S&R": "SaveVideo", "enableTabs": false, "tabWidth": 65, "tabXOffset": 10, "hasSecondTab": false, "secondTabText": "Send Back", "secondTabOffset": 80, "secondTabWidth": 65 }, "widgets_values": [ "video/LTX-2.3", "auto", "auto" ] }, { "id": 153, "type": "f968b88d-bf8b-4730-a1c2-b682dede86ca", "pos": [ 400, 3230 ], "size": [ 400, 470 ], "flags": {}, "order": 1, "mode": 0, "inputs": [ { "label": "length", "name": "value", "type": "INT", "widget": { "name": "value" }, "link": null }, { "label": "upscale_model", "name": "model_name", "type": "COMBO", "widget": { "name": "model_name" }, "link": null }, { "label": "distilled_lora", "name": "lora_name", "type": "COMBO", "widget": { "name": "lora_name" }, "link": null } ], "outputs": [ { "name": "VIDEO", "type": "VIDEO", "links": [ 350 ] } ], "properties": { "proxyWidgets": [ [ "-1", "prompt" ], [ "-1", "width" ], [ "-1", "height" ], [ "-1", "value" ], [ "151", "noise_seed" ], [ "151", "control_after_generate" ], [ "-1", "ckpt_name" ], [ "-1", "text_encoder" ], [ "-1", "model_name" ], [ "-1", "lora_name" ] ], "cnr_id": "comfy-core", "ver": "0.15.1" }, "widgets_values": [ "A close-up cinematic shot of futuristic mechanical parts assembling in midair like a high-tech machine building itself, tiny screws, gears and panels snapping into place, sparks and glowing lights, extremely detailed metal textures. The final assembled device has a clean, unobstructed flat surface with glowing engraved text clearly displaying \"LTX-2.3\", text is large, legible, centered, highly visible and not covered by any parts, dramatic studio lighting, ultra realistic, 8K, sharp focus, cinematic detail\n", 1280, 720, 121, null, null, "ltx-2.3-22b-dev.safetensors", "gemma_3_12B_it_fp4_mixed.safetensors", "ltx-2.3-spatial-upscaler-x2-1.0.safetensors", "ltx-2.3-22b-distilled-lora-384.safetensors" ] }, { "id": 95, "type": "MarkdownNote", "pos": [ -190, 3230 ], "size": [ 480, 1098.4375 ], "flags": {}, "order": 2, "mode": 0, "inputs": [], "outputs": [], "title": "Model Links", "properties": {}, "widgets_values": [ "- 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-x2-1.0.safetensors](https://huggingface.co/Lightricks/LTX-2.3/resolve/main/ltx-2.3-spatial-upscaler-x2-1.0.safetensors)\n\n**checkpoints**\n\n- [ltx-2.3-22b-dev.safetensors](https://huggingface.co/Lightricks/LTX-2.3/resolve/main/ltx-2.3-22b-dev.safetensors)\n\n**loras**\n\n- [ltx-2.3-22b-distilled-lora-384.safetensors](https://huggingface.co/Lightricks/LTX-2.3/resolve/main/ltx-2.3-22b-distilled-lora-384.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\n## Model Storage Location\n\n```\nšŸ“‚ ComfyUI/\nā”œā”€ā”€ šŸ“‚ models/\nā”‚ ā”œā”€ā”€ šŸ“‚ latent_upscale_models/\nā”‚ ā”‚ ā””ā”€ā”€ ltx-2.3-spatial-upscaler-x2-1.0.safetensors\nā”‚ ā”œā”€ā”€ šŸ“‚ checkpoints/\nā”‚ ā”‚ ā””ā”€ā”€ ltx-2.3-22b-dev.safetensors\nā”‚ ā”œā”€ā”€ šŸ“‚ loras/\nā”‚ ā”‚ ā””ā”€ā”€ ltx-2.3-22b-distilled-lora-384.safetensors\nā”‚ ā””ā”€ā”€ šŸ“‚ text_encoders/\nā”‚ ā”œā”€ā”€ gemma_3_12B_it_fp4_mixed.safetensors\nā”‚ ā””ā”€ā”€ ltx-2-19b-embeddings_connector_dev_bf16.safetensors\n```\n\n## Report other issues\n\nNote: please update ComfyUI first ([guide](https://docs.comfy.org/zh-CN/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)" ], "color": "#222", "bgcolor": "#000" } ], "links": [ [ 350, 153, 0, 75, 0, "VIDEO" ] ], "groups": [], "definitions": { "subgraphs": [ { "id": "f968b88d-bf8b-4730-a1c2-b682dede86ca", "version": 1, "state": { "lastGroupId": 12, "lastNodeId": 153, "lastLinkId": 367, "lastRerouteId": 0 }, "revision": 0, "config": {}, "name": "Text to Video (LTX-2.3)", "inputNode": { "id": -10, "bounding": [ -690, 7200, 125.224609375, 200 ] }, "outputNode": { "id": -20, "bounding": [ 3258.077595991429, 7306.422273087601, 120, 60 ] }, "inputs": [ { "id": 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