stable-diffusion 3 体验部署流程(ComfyUI)

环境准备

下载及简介

git clone https://huggingface.co/stabilityai/stable-diffusion-3-medium

SD3 checkpoints:

  1. sd3_medium_incl_clips.safetensors (5.5GB)
  2. sd3_medium_incl_clips_t5xxlfp8.safetensors (10.1GB)
  3. sd3_medium.safetensors (4.3GB)

前两个可以像 ComfyUI 中的任何常规checkpoints一样使用。这两个checkpoints之间的区别在于,第一个仅包含 2 个文本编码器:CLIP-L 和 CLIP-G,第二个包含 3 个:CLIP-L、CLIP-G 和 T5XXL。第三个模型不包含文本编码器,必须单独加载它们才能使用该文件。

模型保存

把如下三个模型放在 ComfyUI/models/checkpoints/ 目录中(可以选择其中一个模型体验)

  • sd3_medium_incl_clips.safetensors
  • sd3_medium_incl_clips_t5xxlfp8.safetensors
  • sd3_medium.safetensors
文本编码器保存

从text_encoders目录下载文本编码器,选择其中的一个文件保存到ComfyUI/models/clip/目录中:

  • clip_g.safetensors
  • clip_l.safetensors
  • t5xxl_fp8_e4m3fn.safetensors
  • t5xxl_fp16.safetensors

ComfyUI 测试体验

打开comfyui 界面 导入脚本并执行:

复制代码
{
  "last_node_id": 272,
  "last_link_id": 599,
  "nodes": [
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      "id": 11,
      "type": "TripleCLIPLoader",
      "pos": [
        -1885,
        -49
      ],
      "size": {
        "0": 315,
        "1": 106
      },
      "flags": {},
      "order": 0,
      "mode": 0,
      "outputs": [
        {
          "name": "CLIP",
          "type": "CLIP",
          "links": [
            5,
            94
          ],
          "shape": 3,
          "slot_index": 0
        }
      ],
      "properties": {
        "Node name for S&R": "TripleCLIPLoader"
      },
      "widgets_values": [
        "clip_g.safetensors",
        "clip_l.safetensors",
        "t5xxl_fp8_e4m3fn.safetensors"
      ]
    },
    {
      "id": 71,
      "type": "CLIPTextEncode",
      "pos": [
        -1869.2871546875003,
        560.071803930664
      ],
      "size": {
        "0": 380.4615783691406,
        "1": 102.07693481445312
      },
      "flags": {},
      "order": 6,
      "mode": 0,
      "inputs": [
        {
          "name": "clip",
          "type": "CLIP",
          "link": 94
        }
      ],
      "outputs": [
        {
          "name": "CONDITIONING",
          "type": "CONDITIONING",
          "links": [
            93,
            580
          ],
          "shape": 3,
          "slot_index": 0
        }
      ],
      "title": "CLIP Text Encode (Negative Prompt)",
      "properties": {
        "Node name for S&R": "CLIPTextEncode"
      },
      "widgets_values": [
        "bad quality, poor quality, doll, disfigured, jpg, toy, bad anatomy, missing limbs, missing fingers, 3d, cgi"
      ],
      "color": "#322",
      "bgcolor": "#533"
    },
    {
      "id": 68,
      "type": "ConditioningSetTimestepRange",
      "pos": [
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      "size": {
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      "flags": {},
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      "mode": 0,
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        {
          "name": "conditioning",
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          "link": 90
        }
      ],
      "outputs": [
        {
          "name": "CONDITIONING",
          "type": "CONDITIONING",
          "links": [
            91
          ],
          "shape": 3,
          "slot_index": 0
        }
      ],
      "properties": {
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      "widgets_values": [
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      ],
      "outputs": [
        {
          "name": "CONDITIONING",
          "type": "CONDITIONING",
          "links": [
            92
          ],
          "shape": 3,
          "slot_index": 0
        }
      ],
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        "Node name for S&R": "ConditioningSetTimestepRange"
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      "widgets_values": [
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    },
    {
      "id": 67,
      "type": "ConditioningZeroOut",
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      "flags": {},
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      "mode": 0,
      "inputs": [
        {
          "name": "conditioning",
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          "link": 580
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      ],
      "outputs": [
        {
          "name": "CONDITIONING",
          "type": "CONDITIONING",
          "links": [
            90
          ],
          "shape": 3,
          "slot_index": 0
        }
      ],
      "properties": {
        "Node name for S&R": "ConditioningZeroOut"
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    },
    {
      "id": 266,
      "type": "Note",
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      "size": {
        "0": 308.061279296875,
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      "flags": {},
      "order": 1,
      "mode": 0,
      "properties": {
        "text": ""
      },
      "widgets_values": [
        "Resolution should be around 1 megapixel and width/height must be multiple of 64"
      ],
      "color": "#432",
      "bgcolor": "#653"
    },
    {
      "id": 13,
      "type": "ModelSamplingSD3",
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        "0": 315,
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      "flags": {
        "collapsed": false
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      "order": 7,
      "mode": 0,
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          "name": "model",
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      ],
      "outputs": [
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          "name": "MODEL",
          "type": "MODEL",
          "links": [
            591
          ],
          "shape": 3,
          "slot_index": 0
        }
      ],
      "properties": {
        "Node name for S&R": "ModelSamplingSD3"
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      "flags": {},
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          "link": 91
        },
        {
          "name": "conditioning_2",
          "type": "CONDITIONING",
          "link": 92
        }
      ],
      "outputs": [
        {
          "name": "CONDITIONING",
          "type": "CONDITIONING",
          "links": [
            592
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          "shape": 3,
          "slot_index": 0
        }
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      "properties": {
        "Node name for S&R": "ConditioningCombine"
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    },
    {
      "id": 233,
      "type": "PreviewImage",
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      "flags": {},
      "order": 14,
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          "type": "IMAGE",
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      "properties": {
        "Node name for S&R": "PreviewImage"
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          "name": "samples",
          "type": "LATENT",
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        {
          "name": "vae",
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      "outputs": [
        {
          "name": "IMAGE",
          "type": "IMAGE",
          "links": [
            599
          ],
          "shape": 3,
          "slot_index": 0
        }
      ],
      "properties": {
        "Node name for S&R": "VAEDecode"
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      "size": {
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      "flags": {},
      "order": 2,
      "mode": 0,
      "outputs": [
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          "name": "MODEL",
          "type": "MODEL",
          "links": [
            565
          ],
          "shape": 3,
          "slot_index": 0
        },
        {
          "name": "CLIP",
          "type": "CLIP",
          "links": [],
          "shape": 3,
          "slot_index": 1
        },
        {
          "name": "VAE",
          "type": "VAE",
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            557
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          "shape": 3,
          "slot_index": 2
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      ],
      "properties": {
        "Node name for S&R": "CheckpointLoaderSimple"
      },
      "widgets_values": [
        "sdv3/2b_1024/sd3_medium.safetensors"
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    },
    {
      "id": 271,
      "type": "KSampler",
      "pos": [
        -269,
        -179
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      "size": {
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      "flags": {},
      "order": 12,
      "mode": 0,
      "inputs": [
        {
          "name": "model",
          "type": "MODEL",
          "link": 591
        },
        {
          "name": "positive",
          "type": "CONDITIONING",
          "link": 595
        },
        {
          "name": "negative",
          "type": "CONDITIONING",
          "link": 592
        },
        {
          "name": "latent_image",
          "type": "LATENT",
          "link": 593
        },
        {
          "name": "seed",
          "type": "INT",
          "link": 597,
          "widget": {
            "name": "seed"
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          "slot_index": 4
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      ],
      "outputs": [
        {
          "name": "LATENT",
          "type": "LATENT",
          "links": [
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          ],
          "shape": 3,
          "slot_index": 0
        }
      ],
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        "Node name for S&R": "KSampler"
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      "widgets_values": [
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    {
      "id": 135,
      "type": "EmptySD3LatentImage",
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      ],
      "size": {
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      "flags": {},
      "order": 3,
      "mode": 0,
      "inputs": [],
      "outputs": [
        {
          "name": "LATENT",
          "type": "LATENT",
          "links": [
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          "shape": 3,
          "slot_index": 0
        }
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      "properties": {
        "Node name for S&R": "EmptySD3LatentImage"
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      "widgets_values": [
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          "type": "CONDITIONING",
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          "shape": 3,
          "slot_index": 0
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      ],
      "properties": {
        "Node name for S&R": "CLIPTextEncode"
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      "widgets_values": [
        "a female character with long, flowing hair that appears to be made of ethereal, swirling patterns resembling the Northern Lights or Aurora Borealis. The background is dominated by deep blues and purples, creating a mysterious and dramatic atmosphere. The character's face is serene, with pale skin and striking features. She wears a dark-colored outfit with subtle patterns. The overall style of the artwork is reminiscent of fantasy or supernatural genres"
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      "outputs": [
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          "name": "INT",
          "type": "INT",
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          "slot_index": 0,
          "widget": {
            "name": "seed"
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      "title": "Seed",
      "properties": {
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  "groups": [
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      "title": "Load Models",
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  "config": {},
  "extra": {},
  "version": 0.4
}

测试结果展示






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