Workflow Nunchaku Flux Dev Img2img Upscaler

workflow_nunchaku_flux_dev_img2img_upscaler

Imported workflow skill generated from Nunchaku Flux Dev img2img + Upscaler.json.

Family

• upscaling

Inputs

• Optional runtime overrides supported by run(...):
  • prompt
  • negative_prompt
  • width, height
  • seed, steps, cfg
  • sampler_name, scheduler, denoise
  • server, headers, api_prefix

Outputs

• Returns JSON with:
  • status
  • prompt_id
  • output_images

Model Requirements

• vae: ae.safetensors -> models/vae
• upscale_model: 4xNomos2_hq_dat2.safetensors -> models/upscale_models

Custom Node Requirements

• ComfyUI-TiledDiffusion
• ComfyUI-nunchaku
• comfyui-easy-use
• rgthree-comfy

Links

• https://discord.com/invite/gggpkVgBf3
• https://github.com/Tavris1/ComfyUI-Easy-Install
• https://huggingface.co/Comfy-Org/Lumina_Image_2.0_Repackaged/resolve/main/split_files/vae/ae.safetensors?download=true
• https://huggingface.co/Phips/4xNomos2_hq_dat2
• https://huggingface.co/Phips/4xNomos2_hq_dat2/resolve/main/4xNomos2_hq_dat2.safetensors?download=true
• https://huggingface.co/comfyanonymous/flux_text_encoders/resolve/main/clip_l.safetensors?download=true
• https://huggingface.co/comfyanonymous/flux_text_encoders/resolve/main/t5xxl_fp8_e4m3fn_scaled.safetensors?download=true
• https://huggingface.co/comfyanonymous/flux_text_encoders/tree/main
• https://huggingface.co/mit-han-lab/nunchaku-flux.1-dev/resolve/main/svdq-fp4_r32-flux.1-dev.safetensors?download=true
• https://huggingface.co/mit-han-lab/nunchaku-flux.1-dev/resolve/main/svdq-int4_r32-flux.1-dev.safetensors?download=true
• https://huggingface.co/mit-han-lab/nunchaku-flux.1-dev/tree/main
• https://www.youtube.com/@pixaroma

Routing Metadata

• Family: upscaling
• Input modalities: image, text_prompt
• Output modalities: image/png
• Model families: flux
• Node count: 30
• Complexity score: 2
• Resource profile: low
• Estimated runtime: fast (usually under 30s on modern GPU)
• Max latent resolution hint: NonexNone
• Max sampler steps hint: 30

Detected Models

• vae: ae.safetensors -> models/vae
• upscale_model: 4xNomos2_hq_dat2.safetensors -> models/upscale_models

Detected Custom Nodes

• ComfyUI-TiledDiffusion
• ComfyUI-nunchaku
• comfyui-easy-use
• rgthree-comfy

Runtime Warnings

• Multiple custom nodes required; verify node installation/version compatibility.