工作流 /
视频 /
FastVideo FastH3：文生视频
FastVideo FastH3：文生视频
FastVideo FastH3: Text to Video
使用蒸馏八步模型直接从文本生成同步的视频和音频，输出一个视频，无需任何文件输入。非常适合快速文生视频原型设计、音视频内容创作以及创意叙事，在这些场景中，快速生成比最大细节更重要。
视频
5 个节点 423 次使用 ComfyUI ≥ 0.36.0 ComfyUI 59 KB
需要的权重
这个工作流引用了 4 个权重文件，其中 3 个能在本站模型库里找到。
fastvideo_fasth3_8step_v2_pruned_int8_convrot.safetensors
模型库暂未收录
minimax_h3_audio_vae_fp32.safetensors
在模型库查看
minimax_h3_video_vae_int8_convrot.safetensors
在模型库查看
qwen3vl_32b_minimax_h3_nvfp4_awq.safetensors
在模型库查看
节点构成
MarkdownNote
× 2
SaveVideo
× 1
4c314f31-ecda-4b08-ae98-faaba1bf613f
× 1
ResolutionSelector
× 1
官方标注的模型
MiniMax H3
工作流 JSON
和上面「下载工作流 JSON」是同一份文件。
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172 "## About this workflow\n\nThis template runs the **Text to Video** task (`MiniMaxH3ImageToVideo` node with no images connected) using the [FastVideo FastH3 8-Step V2](https://huggingface.co/FastVideo/FastVideo-FastH3-8-Step-V2) checkpoint, a DMD2-distilled model that generates synchronized video and audio in **8 sampling steps** instead of the base model's full schedule.\n\n**Checkpoint repo**: [FastVideo/FastVideo-FastH3-Comfy](https://huggingface.co/FastVideo/FastVideo-FastH3-Comfy)\n\n**Scope**: this distilled checkpoint supports t2va only. FL2VA (first/last-frame) and Ref2VA (multi-reference conditioning) were not distilled; use the base MiniMax H3 model for image-conditioned tasks.\n\n**Key inputs**\n\n- **prompt**: describe the shots, motion, and the accompanying audio (dialogue, SFX, music) in one block\n- **width / height**: set via Resolution Selector. H3's native canvas is a 768px short edge, capped at 768x1344 pixels, rounded to a multiple of 32\n- **duration (seconds)**: converted to a valid frame `length` by the Math Expression node, snapping up to the model's 17-frame-per-block (17k+5) grid at 24fps"
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175 "text": "## About this workflow\n\nThis template runs the **Text to Video** task (`MiniMaxH3ImageToVideo` node with no images connected) using the [FastVideo FastH3 8-Step V2](https://huggingface.co/FastVideo/FastVideo-FastH3-8-Step-V2) checkpoint, a DMD2-distilled model that generates synchronized video and audio in **8 sampling steps** instead of the base model's full schedule.\n\n**Checkpoint repo**: [FastVideo/FastVideo-FastH3-Comfy](https://huggingface.co/FastVideo/FastVideo-FastH3-Comfy)\n\n**Scope**: this distilled checkpoint supports t2va only. FL2VA (first/last-frame) and Ref2VA (multi-reference conditioning) were not distilled; use the base MiniMax H3 model for image-conditioned tasks.\n\n**Key inputs**\n\n- **prompt**: describe the shots, motion, and the accompanying audio (dialogue, SFX, music) in one block\n- **width / height**: set via Resolution Selector. H3's native canvas is a 768px short edge, capped at 768x1344 pixels, rounded to a multiple of 32\n- **duration (seconds)**: converted to a valid frame `length` by the Math Expression node, snapping up to the model's 17-frame-per-block (17k+5) grid at 24fps"
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199 "Guide: [Subgraph](https://docs.comfy.org/interface/features/subgraph)\n\n## Model Links\n\n- [Hugging Face:Comfy-Org/MiniMax-H3](https://huggingface.co/Comfy-Org/MiniMax-H3)\n\n**ModelScope mirrors** (alternative repo location)\n\n- [ModelScope:Comfy-Org/MiniMax-H3](https://modelscope.cn/models/Comfy-Org/MiniMax-H3)\n\n**vae**\n\n- [minimax_h3_video_vae_int8_convrot.safetensors](https://huggingface.co/Comfy-Org/MiniMax-H3/resolve/main/vae/minimax_h3_video_vae_int8_convrot.safetensors) (2.62 GB)\n- [minimax_h3_audio_vae_fp32.safetensors](https://huggingface.co/Comfy-Org/MiniMax-H3/resolve/main/vae/minimax_h3_audio_vae_fp32.safetensors) (577.2 MB)\n\n**diffusion_models**\n\n- [fastvideo_fasth3_8step_v2_pruned_int8_convrot.safetensors](https://huggingface.co/FastVideo/FastVideo-FastH3-Comfy/resolve/main/diffusion_models/fastvideo_fasth3_8step_v2_pruned_int8_convrot.safetensors) (20.61 GB)\n\n**text_encoders**\n\n- [qwen3vl_32b_minimax_h3_nvfp4_awq.safetensors](https://huggingface.co/Comfy-Org/MiniMax-H3/resolve/main/text_encoders/qwen3vl_32b_minimax_h3_nvfp4_awq.safetensors) (14.61 GB)\n\n## Model Storage Location\n\n```\n📂 ComfyUI/\n├── 📂 models/\n│ ├── 📂 vae/\n│ │ ├── minimax_h3_video_vae_int8_convrot.safetensors\n│ │ └── minimax_h3_audio_vae_fp32.safetensors\n│ ├── 📂 diffusion_models/\n│ │ └── fastvideo_fasth3_8step_v2_pruned_int8_convrot.safetensors\n│ └── 📂 text_encoders/\n│ └── qwen3vl_32b_minimax_h3_nvfp4_awq.safetensors\n```\n\n## Report Issue\n\nNote: Please update ComfyUI first ([guide](https://docs.comfy.org/installation/update_comfyui)) and prepare required models. Desktop/Cloud updates follow stable releases, so some nightly-supported models may not be available yet.\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)\n"
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202 "text": "Guide: [Subgraph](https://docs.comfy.org/interface/features/subgraph)\n\n## Model Links\n\n- [Hugging Face:Comfy-Org/MiniMax-H3](https://huggingface.co/Comfy-Org/MiniMax-H3)\n\n**ModelScope mirrors** (alternative repo location)\n\n- [ModelScope:Comfy-Org/MiniMax-H3](https://modelscope.cn/models/Comfy-Org/MiniMax-H3)\n\n**vae**\n\n- [minimax_h3_video_vae_int8_convrot.safetensors](https://huggingface.co/Comfy-Org/MiniMax-H3/resolve/main/vae/minimax_h3_video_vae_int8_convrot.safetensors) (2.62 GB)\n- [minimax_h3_audio_vae_fp32.safetensors](https://huggingface.co/Comfy-Org/MiniMax-H3/resolve/main/vae/minimax_h3_audio_vae_fp32.safetensors) (577.2 MB)\n\n**diffusion_models**\n\n- [fastvideo_fasth3_8step_v2_pruned_int8_convrot.safetensors](https://huggingface.co/FastVideo/FastVideo-FastH3-Comfy/resolve/main/diffusion_models/fastvideo_fasth3_8step_v2_pruned_int8_convrot.safetensors) (20.61 GB)\n\n**text_encoders**\n\n- [qwen3vl_32b_minimax_h3_nvfp4_awq.safetensors](https://huggingface.co/Comfy-Org/MiniMax-H3/resolve/main/text_encoders/qwen3vl_32b_minimax_h3_nvfp4_awq.safetensors) (14.61 GB)\n\n## Model Storage Location\n\n```\n📂 ComfyUI/\n├── 📂 models/\n│ ├── 📂 vae/\n│ │ ├── minimax_h3_video_vae_int8_convrot.safetensors\n│ │ └── minimax_h3_audio_vae_fp32.safetensors\n│ ├── 📂 diffusion_models/\n│ │ └── fastvideo_fasth3_8step_v2_pruned_int8_convrot.safetensors\n│ └── 📂 text_encoders/\n│ └── qwen3vl_32b_minimax_h3_nvfp4_awq.safetensors\n```\n\n## Report Issue\n\nNote: Please update ComfyUI first ([guide](https://docs.comfy.org/installation/update_comfyui)) and prepare required models. Desktop/Cloud updates follow stable releases, so some nightly-supported models may not be available yet.\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)\n"
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