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"url": "https://huggingface.co/Lightricks/LTX-2.3-fp8/resolve/main/ltx-2.3-22b-dev-fp8.safetensors"}], "secondTabOffset": 80, "secondTabText": "Send Back", "secondTabWidth": 65, "tabWidth": 65, "tabXOffset": 10, "ver": "0.3.56"}, "size": [430, 140], "type": "CheckpointLoaderSimple", "widgets_values": ["ltx-2.3-22b-dev-fp8.safetensors"]}, {"flags": {}, "id": 330, "inputs": [{"link": null, "localized_name": "text_encoder", "name": "text_encoder", "type": "COMBO", "widget": {"name": "text_encoder"}}, {"link": null, "localized_name": "ckpt_name", "name": "ckpt_name", "type": "COMBO", "widget": {"name": "ckpt_name"}}, {"link": null, "localized_name": "device", "name": "device", "type": "COMBO", "widget": {"name": "device"}}], "mode": 0, "order": 11, "outputs": [{"links": [713, 716], "localized_name": "CLIP", "name": "CLIP", "type": "CLIP"}], "pos": [680, 5740], "properties": {"Node name for S&R": "LTXAVTextEncoderLoader", "cnr_id": "comfy-core", "enableTabs": false, "hasSecondTab": false, "models": [{"directory": "checkpoints", "name": "ltx-2.3-22b-dev-fp8.safetensors", "url": "https://huggingface.co/Lightricks/LTX-2.3-fp8/resolve/main/ltx-2.3-22b-dev-fp8.safetensors"}, {"directory": "text_encoders", "name": "gemma_3_12B_it_fp4_mixed.safetensors", "url": "https://huggingface.co/Comfy-Org/ltx-2/resolve/main/split_files/text_encoders/gemma_3_12B_it_fp4_mixed.safetensors"}], "secondTabOffset": 80, "secondTabText": "Send Back", "secondTabWidth": 65, "tabWidth": 65, "tabXOffset": 10, "ver": "0.7.0"}, "size": [430, 170], "type": "LTXAVTextEncoderLoader", "widgets_values": ["gemma_3_12B_it_fp4_mixed.safetensors", "ltx-2.3-22b-dev-fp8.safetensors", "default"]}, {"flags": {}, "id": 331, "inputs": [{"label": "Prompt", "link": null, "localized_name": "value", "name": "value", "type": "STRING", "widget": {"name": "value"}}], "mode": 0, "order": 12, "outputs": [{"links": [718, 724], "localized_name": "STRING", "name": "STRING", "type": "STRING"}], "pos": [230, 5310], "properties": {"Node name for S&R": "PrimitiveStringMultiline", "cnr_id": "comfy-core", "enableTabs": false, "hasSecondTab": false, "secondTabOffset": 80, "secondTabText": "Send Back", "secondTabWidth": 65, "tabWidth": 65, "tabXOffset": 10, "ver": "0.16.3"}, "size": [370, 350], "title": "Prompt", "type": "PrimitiveStringMultiline", "widgets_values": ["Cinematic product advertisement, subtle push in as the product levitates"]}, {"flags": {"collapsed": false}, "id": 332, "inputs": [{"link": 717, "localized_name": "clip", "name": "clip", "type": "CLIP"}, {"link": 715, "localized_name": "image", "name": "image", "shape": 7, "type": "IMAGE"}, {"link": null, "localized_name": "video", "name": "video", "shape": 7, "type": "IMAGE"}, {"link": null, "localized_name": "audio", "name": "audio", "shape": 7, "type": "AUDIO"}, {"link": 719, "localized_name": "prompt", "name": "prompt", "type": "STRING", "widget": {"name": "prompt"}}, {"link": null, "localized_name": "max_length", "name": "max_length", "type": "INT", "widget": {"name": "max_length"}}, {"link": null, "localized_name": "sampling_mode", "name": "sampling_mode", "type": "COMFY_DYNAMICCOMBO_V3", "widget": {"name": "sampling_mode"}}, {"link": null, "localized_name": "temperature", "name": "sampling_mode.temperature", "type": "FLOAT", "widget": {"name": "sampling_mode.temperature"}}, {"link": null, "localized_name": "top_k", "name": "sampling_mode.top_k", "type": "INT", "widget": {"name": "sampling_mode.top_k"}}, {"link": null, "localized_name": "top_p", "name": "sampling_mode.top_p", "type": "FLOAT", "widget": {"name": "sampling_mode.top_p"}}, {"link": null, "localized_name": "min_p", "name": "sampling_mode.min_p", "type": "FLOAT", "widget": {"name": "sampling_mode.min_p"}}, {"link": null, "localized_name": "repetition_penalty", "name": "sampling_mode.repetition_penalty", "type": "FLOAT", "widget": {"name": "sampling_mode.repetition_penalty"}}, {"label": "Prompt Seed (change to enhance new prompt)", "link": null, "localized_name": "seed", "name": "sampling_mode.seed", "type": "INT", "widget": {"name": "sampling_mode.seed"}}, {"link": null, "localized_name": "presence_penalty", "name": "sampling_mode.presence_penalty", "shape": 7, "type": "FLOAT", "widget": {"name": "sampling_mode.presence_penalty"}}, {"link": null, "localized_name": "thinking", "name": "thinking", "shape": 7, "type": "BOOLEAN", "widget": {"name": "thinking"}}, {"link": null, "localized_name": "use_default_template", "name": "use_default_template", "shape": 7, "type": "BOOLEAN", "widget": {"name": "use_default_template"}}], "mode": 0, "order": 49, "outputs": [{"links": [714], "localized_name": "generated_text", "name": "generated_text", "type": "STRING"}], "pos": [1200, 4500], "properties": {"Node name for S&R": "TextGenerateLTX2Prompt", "cnr_id": "comfy-core", "enableTabs": false, "hasSecondTab": false, "secondTabOffset": 80, "secondTabText": "Send Back", "secondTabWidth": 65, "tabWidth": 65, "tabXOffset": 10, "ver": "0.16.3"}, "showAdvanced": true, "size": [400, 420], "type": "TextGenerateLTX2Prompt", "widgets_values": ["", 256, "on", 0.7, 64, 0.95, 0.05, 1.05, 123456789, 0, false, true]}, {"flags": {}, "id": 333, "inputs": [{"link": 714, "localized_name": "source", "name": "source", "type": "*"}], "mode": 0, "order": 50, "outputs": [{"links": [720], "localized_name": "STRING", "name": "STRING", "type": "STRING"}], "pos": [1640, 4490], "properties": {"Node name for S&R": "PreviewAny", "cnr_id": "comfy-core", "enableTabs": false, "hasSecondTab": false, "secondTabOffset": 80, "secondTabText": "Send Back", "secondTabWidth": 65, "tabWidth": 65, "tabXOffset": 10, "ver": "0.16.3"}, "size": [490, 300], "type": "PreviewAny", "widgets_values": [null, null, null]}, {"flags": {}, "id": 334, "inputs": [{"link": 694, "localized_name": "video_latent", "name": "video_latent", "type": "LATENT"}, {"link": 695, "localized_name": "audio_latent", "name": "audio_latent", "type": "LATENT"}], "mode": 0, "order": 51, "outputs": [{"links": [664], "localized_name": "latent", "name": "latent", "type": "LATENT"}], "pos": [2820, 6180], "properties": {"Node name for S&R": "LTXVConcatAVLatent", "cnr_id": "comfy-core", "enableTabs": false, "hasSecondTab": false, "secondTabOffset": 80, "secondTabText": "Send Back", "secondTabWidth": 65, "tabWidth": 65, "tabXOffset": 10, "ver": "0.7.0"}, "size": [240, 90], "type": "LTXVConcatAVLatent", "widgets_values": []}, {"flags": {}, "id": 335, "inputs": [{"link": null, "localized_name": "clip_name", "name": "clip_name", "type": "COMBO", "widget": {"name": "clip_name"}}, {"link": null, "localized_name": "type", "name": "type", "type": "COMBO", "widget": {"name": "type"}}, {"link": null, "localized_name": "device", "name": "device", "shape": 7, "type": "COMBO", "widget": {"name": "device"}}], "mode": 0, "order": 13, "outputs": [{"links": [717], "localized_name": "CLIP", "name": "CLIP", "type": "CLIP"}], "pos": [560, 4510], "properties": {"Node name for S&R": "CLIPLoader", "cnr_id": "comfy-core", "enableTabs": false, "hasSecondTab": false, "models": [{"directory": "text_encoders", "name": "qwen3.5_4b_bf16.safetensors", "url": "https://huggingface.co/Comfy-Org/Qwen3.5/resolve/main/text_encoders/qwen3.5_4b_bf16.safetensors"}], "secondTabOffset": 80, "secondTabText": "Send Back", "secondTabWidth": 65, "tabWidth": 65, "tabXOffset": 10, "ver": "0.18.1"}, "size": [500, 160], "title": "CLIP Loader (Qwen LLM for lyrics)", "type": "CLIPLoader", "widgets_values": ["qwen3.5_4b_bf16.safetensors", "stable_diffusion", "default"]}, {"flags": {}, "id": 336, "inputs": [{"link": null, "localized_name": "string", "name": "string", "type": "STRING", "widget": {"name": "string"}}, {"link": null, "localized_name": "find", "name": "find", "type": "STRING", "widget": {"name": "find"}}, {"link": 718, "localized_name": "replace", "name": "replace", "type": "STRING", "widget": {"name": "replace"}}], "mode": 0, "order": 21, "outputs": [{"links": [719], "localized_name": "STRING", "name": "STRING", "type": 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"comfy-core", "ver": "0.16.3"}, "size": [270, 170], "title": "Seconds -> Frames", "type": "ComfyMathExpression", "widgets_values": ["floor(a * b / 8) * 8 + 1"]}, {"flags": {}, "id": 338, "inputs": [{"label": "Aspect Ratio", "link": null, "localized_name": "choice", "name": "choice", "type": "COMBO", "widget": {"name": "choice"}}], "mode": 0, "order": 14, "outputs": [{"links": [726, 727], "localized_name": "STRING", "name": "STRING", "type": "STRING"}, {"links": [], "localized_name": "INDEX", "name": "INDEX", "type": "INT"}], "pos": [230, 6030], "properties": {"Node name for S&R": "CustomCombo"}, "size": [370, 280], "title": "Aspect Ratio", "type": "CustomCombo", "widgets_values": ["16x9", 0, "16x9", "9x16", "1x1", ""]}, {"flags": {}, "id": 339, "inputs": [{"label": "Enhance Prompt", "link": null, "localized_name": "value", "name": "value", "type": "BOOLEAN", "widget": {"name": "value"}}], "mode": 0, "order": 15, "outputs": [{"links": [723], "localized_name": "BOOLEAN", "name": "BOOLEAN", "type": "BOOLEAN"}], "pos": [230, 5750], "properties": {"Node name for S&R": "PrimitiveBoolean"}, "size": [370, 90], "title": "Enhance Prompt", "type": "PrimitiveBoolean", "widgets_values": [true]}, {"flags": {}, "id": 340, "inputs": [{"link": 724, "localized_name": "on_false", "name": "on_false", "type": "STRING"}, {"link": 720, "localized_name": "on_true", "name": "on_true", "type": "STRING"}, {"link": 723, "localized_name": "switch", "name": "switch", "type": "BOOLEAN", "widget": {"name": "switch"}}], "mode": 0, "order": 52, "outputs": [{"links": [725], "localized_name": "output", "name": "output", "type": "STRING"}], "pos": [1650, 4930], "properties": {"Node name for S&R": "ComfySwitchNode"}, "size": [240, 130], "title": "Prompt Enhance Switch", "type": "ComfySwitchNode", "widgets_values": [true]}, {"flags": {}, "id": 341, "inputs": [{"link": null, "localized_name": "json_string", "name": "json_string", "type": "STRING", "widget": {"name": "json_string"}}, {"link": 726, "localized_name": "key", "name": "key", "type": "STRING", "widget": {"name": "key"}}], "mode": 0, "order": 22, "outputs": [{"links": [728], "localized_name": "STRING", "name": "STRING", "type": "STRING"}], "pos": [680, 6390], "properties": {"Node name for S&R": "JsonExtractString"}, "size": [370, 160], "title": "AR -> Width (JSON)", "type": "JsonExtractString", "widgets_values": ["{\"16x9\": \"1280\", \"9x16\": \"720\", \"1x1\": \"1024\"}", "16x9"]}, {"flags": {}, "id": 342, "inputs": [{"link": null, "localized_name": "json_string", "name": "json_string", "type": "STRING", "widget": {"name": "json_string"}}, {"link": 727, "localized_name": "key", "name": "key", "type": "STRING", "widget": {"name": "key"}}], "mode": 0, "order": 23, "outputs": [{"links": [729], "localized_name": "STRING", "name": "STRING", "type": "STRING"}], "pos": [680, 6600], "properties": {"Node name for S&R": "JsonExtractString"}, "size": [370, 160], "title": "AR -> Height (JSON)", "type": "JsonExtractString", "widgets_values": ["{\"16x9\": \"720\", \"9x16\": \"1280\", \"1x1\": \"1024\"}", "16x9"]}, {"flags": {"collapsed": true}, "id": 343, "inputs": [{"link": 728, "localized_name": "value", "name": "value", "type": "INT,FLOAT,STRING,BOOLEAN"}], "mode": 0, "order": 25, "outputs": [{"links": [], "localized_name": "FLOAT", "name": "FLOAT", "type": "FLOAT"}, {"links": [677, 679], "localized_name": "INT", "name": "INT", "type": "INT"}], "pos": [1080, 6420], "properties": {"Node name for S&R": "ComfyNumberConvert"}, "size": [230, 10], "title": "Width (INT)", "type": "ComfyNumberConvert", "widgets_values": []}, {"flags": {"collapsed": true}, "id": 344, "inputs": [{"link": 729, "localized_name": "value", "name": "value", "type": "INT,FLOAT,STRING,BOOLEAN"}], "mode": 0, "order": 26, "outputs": [{"links": [], "localized_name": "FLOAT", "name": "FLOAT", "type": "FLOAT"}, {"links": [678, 681], "localized_name": "INT", "name": "INT", "type": "INT"}], "pos": [1070, 6640], "properties": {"Node name for S&R": "ComfyNumberConvert"}, "size": [230, 10], "title": "Height (INT)", "type": "ComfyNumberConvert", "widgets_values": []}], "outputNode": {"bounding": [5130, 5624.7382268986585, 128, 68], "id": -20}, "outputs": [{"id": "9da42fa5-4789-4ed7-99cc-dd1e1f167466", "linkIds": [712], "localized_name": "VIDEO", "name": "VIDEO", "pos": [24, 24], "type": "VIDEO"}], "revision": 0, "state": {"lastGroupId": 25, "lastLinkId": 731, "lastNodeId": 345, "lastRerouteId": 0}, "version": 1, "widgets": []}]}, "extra": {"VHS_KeepIntermediate": true, "VHS_MetadataImage": true, "VHS_latentpreview": false, "VHS_latentpreviewrate": 0, "comfy_fork_version": "feature/av_inference@a6994ed1", "comfy_mcp": {"name": "seo-image-to-video-ltx-app"}, "ds": {"offset": [1039.8870193859807, -2979.064066729277], "scale": 0.5538461538461541}, "frontendVersion": "1.45.15", "linearData": {"inputs": [[269, "image", {"height": 268}], ["331", "value", {"height": 117}], ["339", "value"], ["316", "value"], ["338", "choice"]], "outputs": [75]}, "linearMode": true, "prompt": {"1": {"_meta": {"title": "Load Checkpoint"}, "class_type": "CheckpointLoaderSimple", "inputs": {"ckpt_name": "ltx-av-step-1751000_vocoder_24K.safetensors"}}, "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": "\ud83c\udd5b\ud83c\udd63\ud83c\udd67 LTXV Audio VAE Loader"}, "class_type": "LTXVAudioVAELoader", "inputs": {"ckpt_name": "ltx-av-step-1751000_vocoder_24K.safetensors"}}, "14": {"_meta": {"title": "\ud83c\udd5b\ud83c\udd63\ud83c\udd67 LTXV Audio VAE Decode"}, "class_type": "LTXVAudioVAEDecode", "inputs": {"audio_vae": ["13", 0], "samples": ["29", 1]}}, "15": {"_meta": {"title": "Video Combine \ud83c\udfa5\ud83c\udd65\ud83c\udd57\ud83c\udd62"}, "class_type": "VHS_VideoCombine", "inputs": {"audio": ["14", 0], "crf": 19, "filename_prefix": "AnimateDiff", "format": "video/h264-mp4", "frame_rate": ["23", 0], "images": ["12", 0], "loop_count": 0, "pingpong": false, "pix_fmt": "yuv420p", "save_metadata": true, "save_output": true, "trim_to_audio": false}}, "17": {"_meta": {"title": "\ud83c\udd5b\ud83c\udd63\ud83c\udd67 Multimodal Guider"}, "class_type": "MultimodalGuider", "inputs": {"model": ["28", 1], "negative": ["22", 1], "parameters": ["18", 0], "positive": ["22", 0], "skip_blocks": "29"}}, "18": {"_meta": {"title": "\ud83c\udd5b\ud83c\udd63\ud83c\udd67 Guider Parameters"}, "class_type": "GuiderParameters", "inputs": {"cfg": 3, "modality": "VIDEO", "modality_scale": 3, "parameters": ["19", 0], "rescale": 0, "stg": 0}}, "19": {"_meta": {"title": "\ud83c\udd5b\ud83c\udd63\ud83c\udd67 Guider Parameters"}, "class_type": "GuiderParameters", "inputs": {"cfg": 7, "modality": "AUDIO", "modality_scale": 3, "rescale": 0, "stg": 0}}, "2": {"_meta": {"title": "\ud83c\udd5b\ud83c\udd63\ud83c\udd67 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}}, "21": {"_meta": {"title": "PreviewAudio"}, "class_type": "PreviewAudio", "inputs": {"audio": ["14", 0], "audioUI": ""}}, "22": {"_meta": {"title": "LTXVConditioning"}, "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": "\ud83c\udd5b\ud83c\udd63\ud83c\udd67 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": "\ud83c\udd5b\ud83c\udd63\ud83c\udd67 LTXV Concat AV 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