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}, "frontendVersion": "1.36.14", "prompt": { "1": { "_meta": { "title": "Load Checkpoint" }, "class_type": "CheckpointLoaderSimple", "inputs": { "ckpt_name": "ltx-av-step-1751000_vocoder_24K.safetensors" } }, "2": { "_meta": { "title": "šŸ…›šŸ…£šŸ…§ Gemma 3 Model Loader" }, "class_type": "LTXVGemmaCLIPModelLoader", "inputs": { "gemma_path": "gemma-3-12b-it-qat-q4_0-unquantized_readout_proj/model/model.safetensors", "ltxv_path": "ltx-av-step-1751000_vocoder_24K.safetensors", "max_length": 1024 } }, "3": { "_meta": { "title": "CLIP Text Encode (Prompt)" }, "class_type": "CLIPTextEncode", "inputs": { "clip": [ "2", 0 ], "text": "" } }, "4": { "_meta": { "title": "CLIP Text Encode (Prompt)" }, "class_type": "CLIPTextEncode", "inputs": { "clip": [ "2", 0 ], "text": "blurry, low quality, still frame, frames, watermark, overlay, titles, has blurbox, has subtitles" } }, "8": { "_meta": { "title": "KSamplerSelect" }, "class_type": "KSamplerSelect", "inputs": { "sampler_name": "euler" } }, "9": { "_meta": { "title": "LTXVScheduler" }, "class_type": "LTXVScheduler", "inputs": { "base_shift": 0.95, "latent": [ "28", 0 ], "max_shift": 2.05, "steps": 20, "stretch": true, "terminal": 0.1 } }, "11": { "_meta": { "title": "RandomNoise" }, "class_type": "RandomNoise", "inputs": { "noise_seed": 10 } }, "12": { "_meta": { "title": "VAE Decode" }, "class_type": "VAEDecode", "inputs": { "samples": [ "29", 0 ], "vae": [ "1", 2 ] } }, "13": { "_meta": { "title": "šŸ…›šŸ…£šŸ…§ LTXV Audio VAE Loader" }, "class_type": "LTXVAudioVAELoader", "inputs": { "ckpt_name": "ltx-av-step-1751000_vocoder_24K.safetensors" } }, "14": { "_meta": { "title": "šŸ…›šŸ…£šŸ…§ LTXV Audio VAE Decode" }, "class_type": "LTXVAudioVAEDecode", "inputs": { "audio_vae": [ "13", 0 ], "samples": [ "29", 1 ] } }, "15": { "_meta": { "title": "Video Combine šŸŽ„šŸ…„šŸ…—šŸ…¢" }, "class_type": "VHS_VideoCombine", "inputs": { "audio": [ "14", 0 ], "crf": 19, "filename_prefix": "AnimateDiff", "format": "video/h264-mp4", 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"class_type": "LTXVConditioning", "inputs": { "frame_rate": [ "23", 0 ], "negative": [ "4", 0 ], "positive": [ "3", 0 ] } }, "23": { "_meta": { "title": "Float Constant" }, "class_type": "FloatConstant", "inputs": { "value": 25 } }, "26": { "_meta": { "title": "šŸ…›šŸ…£šŸ…§ LTXV Empty Latent Audio" }, "class_type": "LTXVEmptyLatentAudio", "inputs": { "batch_size": 1, "frame_rate": [ "42", 0 ], "frames_number": [ "27", 0 ] } }, "27": { "_meta": { "title": "INT Constant" }, "class_type": "INTConstant", "inputs": { "value": 105 } }, "28": { "_meta": { "title": "šŸ…›šŸ…£šŸ…§ LTXV Concat AV Latent" }, "class_type": "LTXVConcatAVLatent", "inputs": { "audio_latent": [ "26", 0 ], "model": [ "44", 0 ], "video_latent": [ "43", 0 ] } }, "29": { "_meta": { "title": "šŸ…›šŸ…£šŸ…§ LTXV Separate AV Latent" }, "class_type": "LTXVSeparateAVLatent", "inputs": { "av_latent": [ "41", 0 ], "model": [ "28", 1 ] } }, "41": { "_meta": { "title": "SamplerCustomAdvanced" }, "class_type": "SamplerCustomAdvanced", "inputs": { "guider": [ "17", 0 ], "latent_image": [ "28", 0 ], "noise": [ "11", 0 ], "sampler": [ "8", 0 ], "sigmas": [ "9", 0 ] } }, "42": { "_meta": { "title": "FloatToInt" }, "class_type": "CM_FloatToInt", "inputs": { "a": [ "23", 0 ] } }, "43": { "_meta": { "title": "EmptyLTXVLatentVideo" }, "class_type": "EmptyLTXVLatentVideo", "inputs": { "batch_size": 1, "height": 512, "length": [ "27", 0 ], "width": 768 } }, "44": { "_meta": { "title": "LTXVSequenceParallelMultiGPUPatcher" }, "class_type": "LTXVSequenceParallelMultiGPUPatcher", "inputs": { "disable_backup": false, "model": [ "1", 0 ], "torch_compile": true } }, "45": { "_meta": { "title": "LTXVAddGuide" }, "class_type": "LTXVAddGuide", "inputs": { "frame_idx": 0, "strength": 1 } } }, "workflowRendererVersion": "LG" }, "groups": [], "id": "59dd2e5b-b2a4-4923-8c1d-e273d20e6ae1", "last_link_id": 263, "last_node_id": 104, "links": [ [ 252, 92, 0, 75, 0, "VIDEO" ], [ 261, 102, 0, 92, 1, "IMAGE" ], [ 263, 98, 0, 102, 0, "IMAGE" ] ], "nodes": [ { "flags": {}, "id": 98, "inputs": [], "mode": 0, "order": 0, "outputs": [ { "links": [ 263 ], "name": "IMAGE", "type": "IMAGE" }, { "links": null, "name": "MASK", "type": "MASK" } ], "pos": [ -89.3331879226277, 3832.6664746655456 ], "properties": { "Node name for S&R": "LoadImage", "cnr_id": "comfy-core", "enableTabs": false, "hasSecondTab": false, "secondTabOffset": 80, "secondTabText": "Send Back", "secondTabWidth": 65, "tabWidth": 65, "tabXOffset": 10, "ver": "0.5.1" }, "size": [ 360, 354.77864583333337 ], "type": "LoadImage", "widgets_values": [ "snow_bike_jump_crew.png", "image" ] }, { "flags": {}, "id": 102, "inputs": [ { "link": 263, "name": "input", "type": "IMAGE,MASK" } ], "mode": 0, "order": 4, "outputs": [ { "links": [ 261 ], "name": "resized", "type": "IMAGE" } ], "pos": [ -40, 4250 ], "properties": { "Node name for S&R": "ResizeImageMaskNode", "cnr_id": "comfy-core", "enableTabs": false, "hasSecondTab": false, "secondTabOffset": 80, "secondTabText": "Send Back", "secondTabWidth": 65, "tabWidth": 65, "tabXOffset": 10, "ver": "0.7.0" }, "size": [ 284.375, 154 ], "type": "ResizeImageMaskNode", "widgets_values": [ "scale dimensions", 1280, 720, "center", "lanczos" ] }, { "bgcolor": "#000", "color": "#222", "flags": { "collapsed": false }, "id": 104, "inputs": [], "mode": 0, "order": 1, "outputs": [], "pos": [ -90, 4490 ], "properties": {}, "size": [ 380, 140 ], "title": "About Size", "type": "MarkdownNote", "widgets_values": [ "Width & height settings must be divisible by 64.\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." ] }, { "flags": { "collapsed": false }, "id": 75, "inputs": [ { "link": 252, "name": "video", "type": "VIDEO" } ], "mode": 0, "order": 6, "outputs": [], "pos": [ 740.6666337179107, 3832.6664746655456 ], "properties": { "Node name for S&R": "SaveVideo", "cnr_id": "comfy-core", "enableTabs": false, "hasSecondTab": false, "secondTabOffset": 80, "secondTabText": "Send Back", "secondTabWidth": 65, "tabWidth": 65, "tabXOffset": 10, "ver": "0.5.1" }, "size": [ 1270, 970 ], "type": "SaveVideo", "widgets_values": [ "video/LTX_2.0_i2v", "auto", "auto" ] }, { "bgcolor": "#000", "color": "#222", "flags": {}, "id": 103, "inputs": [], "mode": 0, "order": 2, "outputs": [], "pos": [ -590, 3830 ], "properties": {}, "size": [ 480, 820 ], "title": "Model Links", "type": "MarkdownNote", "widgets_values": [ "Guide: [Subgraph](https://docs.comfy.org/interface/features/subgraph)\n\n\n## LTX-2 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 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**checkpoints**\n\n- [ltx-2-19b-distilled.safetensors](https://huggingface.co/Lightricks/LTX-2/resolve/main/ltx-2-19b-distilled.safetensors)\n\n- [ltx-2-19b-distilled-fp8.safetensors](https://huggingface.co/Lightricks/LTX-2/resolve/main/ltx-2-19b-distilled-fp8.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**loras**\n\n- [ltx-2-19b-lora-camera-control-dolly-left.safetensors](https://huggingface.co/Lightricks/LTX-2-19b-LoRA-Camera-Control-Dolly-Left/resolve/main/ltx-2-19b-lora-camera-control-dolly-left.safetensors)\n\n**latent_upscale_models**\n\n- [ltx-2-spatial-upscaler-x2-1.0.safetensors](https://huggingface.co/Lightricks/LTX-2/resolve/main/ltx-2-spatial-upscaler-x2-1.0.safetensors)\n\n\nModel Storage Location\n\n```\nšŸ“‚ ComfyUI/\nā”œā”€ā”€ šŸ“‚ models/\nā”‚ ā”œā”€ā”€ šŸ“‚ checkpoints/\nā”‚ ā”‚ ā”œā”€ā”€ ltx-2-19b-distilled.safetensors\nā”‚ ā”‚ ā””ā”€ā”€ ltx-2-19b-distilled-fp8.safetensors\nā”‚ ā”œā”€ā”€ šŸ“‚ text_encoders/\nā”‚ ā”‚ ā””ā”€ā”€ gemma_3_12B_it_fp4_mixed.safetensors\nā”‚ ā”œā”€ā”€ šŸ“‚ loras/\nā”‚ ā”‚ ā””ā”€ā”€ ltx-2-19b-lora-camera-control-dolly-left.safetensors\nā”‚ ā””ā”€ā”€ šŸ“‚ latent_upscale_models/\nā”‚ ā””ā”€ā”€ ltx-2-spatial-upscaler-x2-1.0.safetensors\n```\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 updated after the stable release; nightly-supported models may not be included yet, please wait for the next stable release.\n\n- Cannot run / runtime errors: [ComfyUI/issues](https://github.com/Comfy-Org/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)" ] }, { "bgcolor": "#000", "color": "#222", "flags": {}, "id": 94, "inputs": [], "mode": 0, "order": 3, "outputs": [], "pos": [ 490, 3690 ], "properties": {}, "size": [ 210, 88 ], "title": "Note", "type": "MarkdownNote", "widgets_values": [ "The node below is a subgraph. Learn more at [Subgraph docs](https://docs.comfy.org/interface/features/subgraph)" ] }, { "flags": {}, "id": 92, "inputs": [ { "label": "frame_count", "link": null, "name": "value", "type": "INT", "widget": { "name": "value" } }, { "link": 261, "name": "image", "type": "IMAGE" } ], "mode": 0, "order": 5, "outputs": [ { "links": [ 252 ], "name": "VIDEO", "type": "VIDEO" } ], "pos": [ 300.6665834796644, 3832.6664746655456 ], "properties": { "cnr_id": "comfy-core", "enableTabs": false, "hasSecondTab": false, "proxyWidgets": [ [ "-1", "text" ], [ "-1", "value" ], [ "11", "noise_seed" ], [ "-1", "text_encoder" ], [ "-1", "model_name" ], [ "11", "control_after_generate" ], [ "-1", "ckpt_name" ] ], "secondTabOffset": 80, "secondTabText": "Send Back", "secondTabWidth": 65, "tabWidth": 65, "tabXOffset": 10, "ver": "0.7.0" }, "size": [ 400, 470 ], "type": "b7c2d337-c38d-4c04-922b-2d638449d13e", "widgets_values": [ "A wide, dynamic tracking shot follows a group of mountain bikers as they race across a pristine snow-covered landscape on a brilliant winter morning. The camera moves at speed, keeping pace with the lead biker in a vibrant yellow jacket and orange helmet, who launches into the air over a snow mound, their bike suspended against the clear blue sky. Snow particles explode around them, catching the golden light of the low sun that creates dramatic backlighting and long shadows across the terrain. Several other bikers follow closely behind, their dark silhouettes kicking up plumes of powdery snow as they navigate the undulating mounds. The only sounds are the crunch of tires biting into packed snow, the whoosh of air as they fly through jumps, and the distant sound of heavy breathing and excited shouts. One biker calls out to another with exhilaration: \"This is incredible! The light is perfect!\" Another responds with a breathless laugh: \"Keep pushing! We're almost at the ridge!\" The camera glides smoothly alongside the group, occasionally pulling back to reveal the full expanse of the snowy landscape with bare birch trees and dark evergreens lining the edge. The mood is exhilarating, fast-paced, and full of the raw energy of winter mountain biking, with every jump and turn captured in crisp detail against the brilliant white snow and vibrant sky.", 121, null, "gemma_3_12B_it_fp4_mixed.safetensors", "ltx-2-spatial-upscaler-x2-1.0.safetensors", null, "ltx-2-19b-distilled.safetensors" ] } ], "revision": 0, "version": 0.4 }