ComfyUI FLUX Workflow for Open WebUI

README.txt

When exporting a workflow from ComfyUI use "API format."

ComfyUI Base URL:
http://localhost:8188

Use the following values for ComfyUI Workflow Nodes fields:
Prompt: text 6
Model: unet_name 12
Width: width 27
Height: height 27
Steps: steps 17
Seed: noise_seed 25

This example workflow uses:
- Model: flux1-schnell-fp8.safetensors
- Size: 1024x1024
- Steps: 4
- Guidance: 3.5
- Denoise: 1

OpenWebUI-GenerateImage-flux-schnell-fp8.json

{
  "6": {
    "inputs": {
      "text": "prompt",
      "clip": [
        "11",
        0
      ]
    },
    "class_type": "CLIPTextEncode"
  },
  "8": {
    "inputs": {
      "samples": [
        "13",
        0
      ],
      "vae": [
        "10",
        0
      ]
    },
    "class_type": "VAEDecode"
  },
  "9": {
    "inputs": {
      "filename_prefix": "imagine",
      "images": [
        "8",
        0
      ]
    },
    "class_type": "SaveImage"
  },
  "10": {
    "inputs": {
      "vae_name": "ae.sft"
    },
    "class_type": "VAELoader"
  },
  "11": {
    "inputs": {
      "clip_name1": "t5xxl_fp8_e4m3fn.safetensors",
      "clip_name2": "clip_l.safetensors",
      "type": "flux"
    },
    "class_type": "DualCLIPLoader"
  },
  "12": {
    "inputs": {
      "unet_name": "flux1-schnell-fp8.safetensors",
      "weight_dtype": "default"
    },
    "class_type": "UNETLoader"
  },
  "13": {
    "inputs": {
      "noise": [
        "25",
        0
      ],
      "guider": [
        "22",
        0
      ],
      "sampler": [
        "16",
        0
      ],
      "sigmas": [
        "17",
        0
      ],
      "latent_image": [
        "27",
        0
      ]
    },
    "class_type": "SamplerCustomAdvanced"
  },
  "16": {
    "inputs": {
      "sampler_name": "euler"
    },
    "class_type": "KSamplerSelect"
  },
  "17": {
    "inputs": {
      "scheduler": "simple",
      "steps": 4,
      "denoise": 1,
      "model": [
        "12",
        0
      ]
    },
    "class_type": "BasicScheduler"
  },
  "22": {
    "inputs": {
      "model": [
        "12",
        0
      ],
      "conditioning": [
        "26",
        0
      ]
    },
    "class_type": "BasicGuider"
  },
  "25": {
    "inputs": {
      "noise_seed": 857913637081319
    },
    "class_type": "RandomNoise"
  },
  "26": {
    "inputs": {
      "guidance": 3.5,
      "conditioning": [
        "6",
        0
      ]
    },
    "class_type": "FluxGuidance"
  },
  "27": {
    "inputs": {
      "width": 1024,
      "height": 1024,
      "batch_size": 1
    },
    "class_type": "EmptySD3LatentImage"
  }
}