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工作流 / 视频 / LTX-2: 图生视频
LTX-2: 图生视频

LTX-2: 图生视频

LTX-2: Image to Video

使用LTX-2将静态图像变为动态视频，音视频同步，表情自然，动作流畅。

视频 6 个节点 1 个输入 95 次使用 ComfyUI ≥ 0.8.0 ComfyUI 111 KB

下载工作流 JSON 查看官方来源

下载后把文件拖进 ComfyUI 窗口即可打开。

需要的权重

这个工作流引用了 7 个权重文件，其中 6 个能在本站模型库里找到。

gemma_3_12B_it_fp4_mixed.safetensors 在模型库查看
ltx-2-19b-dev-fp8.safetensors 在模型库查看
ltx-2-19b-distilled-lora-384.safetensors 在模型库查看
ltx-2-19b-lora-camera-control-dolly-left.safetensors 在模型库查看
ltx-2-spatial-upscaler-x2-1.0.safetensors 在模型库查看
ltx-av-step-1751000_vocoder_24K.safetensors 模型库暂未收录
model.safetensors 在模型库查看

节点构成

MarkdownNote × 2
LoadImage × 1
ResizeImageMaskNode × 1
SaveVideo × 1
b7c2d337-c38d-4c04-922b-2d638449d13e × 1

官方标注的模型

LTX-2Lightricks

工作流 JSON

和上面「下载工作流 JSON」是同一份文件。

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3 "revision": 0,
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6 "nodes": [
7 {
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9 "type": "LoadImage",
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17 ],
18 "flags": [],
19 "order": 0,
20 "mode": 0,
21 "inputs": [],
22 "outputs": [
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25 "type": "IMAGE",
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28 ]
29 },
30 {
31 "name": "MASK",
32 "type": "MASK",
33 "links": null
34 }
35 ],
36 "properties": {
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38 "cnr_id": "comfy-core",
39 "ver": "0.5.1",
40 "enableTabs": false,
41 "tabWidth": 65,
42 "tabXOffset": 10,
43 "hasSecondTab": false,
44 "secondTabText": "Send Back",
45 "secondTabOffset": 80,
46 "secondTabWidth": 65
47 },
48 "widgets_values": [
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50 "image"
51 ],
52 "widgets_values_named": {
53 "image": "freckled_curly_girl.png",
54 "upload": "image"
55 }
56 },
57 {
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59 "type": "ResizeImageMaskNode",
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63 ],
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67 ],
68 "flags": [],
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72 {
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76 }
77 ],
78 "outputs": [
79 {
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81 "type": "IMAGE",
82 "links": [
83 261
84 ]
85 }
86 ],
87 "properties": {
88 "Node name for S&R": "ResizeImageMaskNode",
89 "cnr_id": "comfy-core",
90 "ver": "0.7.0",
91 "enableTabs": false,
92 "tabWidth": 65,
93 "tabXOffset": 10,
94 "hasSecondTab": false,
95 "secondTabText": "Send Back",
96 "secondTabOffset": 80,
97 "secondTabWidth": 65
98 },
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103 "center",
104 "lanczos"
105 ],
106 "widgets_values_named": {
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108 "resize_type.width": 1280,
109 "resize_type.height": 720,
110 "resize_type.crop": "center",
111 "scale_method": "lanczos"
112 }
113 },
114 {
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116 "type": "SaveVideo",
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124 ],
125 "flags": {
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128 "order": 5,
129 "mode": 0,
130 "inputs": [
131 {
132 "name": "video",
133 "type": "VIDEO",
134 "link": 252
135 }
136 ],
137 "outputs": [
138 {
139 "name": "video",
140 "type": "VIDEO",
141 "links": null
142 }
143 ],
144 "properties": {
145 "Node name for S&R": "SaveVideo",
146 "cnr_id": "comfy-core",
147 "ver": "0.5.1",
148 "enableTabs": false,
149 "tabWidth": 65,
150 "tabXOffset": 10,
151 "hasSecondTab": false,
152 "secondTabText": "Send Back",
153 "secondTabOffset": 80,
154 "secondTabWidth": 65
155 },
156 "widgets_values": [
157 "video/LTX_2.0_i2v",
158 "auto",
159 "auto",
160 "auto"
161 ],
162 "widgets_values_named": {
163 "filename_prefix": "video/LTX_2.0_i2v",
164 "format": "auto",
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184 "outputs": [],
185 "title": "Model Links",
186 "properties": [],
187 "widgets_values": [
188 "- Huggingface: [Lightricks/LTX-2](https://huggingface.co/Lightricks/LTX-2)\n- Github: [LTX-2](https://github.com/Lightricks/LTX-2)\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- [Hugging Face:Comfy-Org/ltx-2](https://huggingface.co/Comfy-Org/ltx-2)\n\n**ModelScope mirrors** (alternative repo location)\n\n- [ModelScope:Comfy-Org/ltx-2](https://modelscope.cn/models/Comfy-Org/ltx-2)\n\n## Model links (for local users)\n\n**checkpoints**\n- [ltx-2-19b-dev.safetensors](https://huggingface.co/Lightricks/LTX-2/resolve/main/ltx-2-19b-dev.safetensors) (40.31 GB)\n- [ltx-2-19b-dev-fp8.safetensors](https://huggingface.co/Lightricks/LTX-2/resolve/main/ltx-2-19b-dev-fp8.safetensors) (25.22 GB)\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) (8.8 GB)\n\n**loras**\n\n- [ltx-2-19b-distilled-lora-384.safetensors](https://huggingface.co/Lightricks/LTX-2/resolve/main/ltx-2-19b-distilled-lora-384.safetensors) (7.15 GB)\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) (312.1 MB)\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) (949.6 MB)\n\nModel Storage Location\n\n```\n📂 ComfyUI/\n├── 📂 models/\n│ ├── 📂 checkpoints/\n│ │ ├── ltx-2-19b-dev.safetensors\n│ │ └── ltx-2-19b-dev-fp8.safetensors\n│ ├── 📂 text_encoders/\n│ │ └── gemma_3_12B_it_fp4_mixed.safetensors\n│ ├── 📂 loras/\n│ │ ├── ltx-2-19b-distilled-lora-384.safetensors\n│ │ └── ltx-2-19b-lora-camera-control-dolly-left.safetensors\n│ └── 📂 latent_upscale_models/\n│ └── ltx-2-spatial-upscaler-x2-1.0.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 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)"
189 ],
190 "widgets_values_named": {
191 "text": "- Huggingface: [Lightricks/LTX-2](https://huggingface.co/Lightricks/LTX-2)\n- Github: [LTX-2](https://github.com/Lightricks/LTX-2)\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- [Hugging Face:Comfy-Org/ltx-2](https://huggingface.co/Comfy-Org/ltx-2)\n\n**ModelScope mirrors** (alternative repo location)\n\n- [ModelScope:Comfy-Org/ltx-2](https://modelscope.cn/models/Comfy-Org/ltx-2)\n\n## Model links (for local users)\n\n**checkpoints**\n- [ltx-2-19b-dev.safetensors](https://huggingface.co/Lightricks/LTX-2/resolve/main/ltx-2-19b-dev.safetensors) (40.31 GB)\n- [ltx-2-19b-dev-fp8.safetensors](https://huggingface.co/Lightricks/LTX-2/resolve/main/ltx-2-19b-dev-fp8.safetensors) (25.22 GB)\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) (8.8 GB)\n\n**loras**\n\n- [ltx-2-19b-distilled-lora-384.safetensors](https://huggingface.co/Lightricks/LTX-2/resolve/main/ltx-2-19b-distilled-lora-384.safetensors) (7.15 GB)\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) (312.1 MB)\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) (949.6 MB)\n\nModel Storage Location\n\n```\n📂 ComfyUI/\n├── 📂 models/\n│ ├── 📂 checkpoints/\n│ │ ├── ltx-2-19b-dev.safetensors\n│ │ └── ltx-2-19b-dev-fp8.safetensors\n│ ├── 📂 text_encoders/\n│ │ └── gemma_3_12B_it_fp4_mixed.safetensors\n│ ├── 📂 loras/\n│ │ ├── ltx-2-19b-distilled-lora-384.safetensors\n│ │ └── ltx-2-19b-lora-camera-control-dolly-left.safetensors\n│ └── 📂 latent_upscale_models/\n│ └── ltx-2-spatial-upscaler-x2-1.0.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 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)"
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