MiniMax H3 Reference-to-Image ComfyUI Workflow (ref2va single frame)
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Article: https://freakyjolly.com/minimax-h3-comfyui-reference-to-image-ref2va/

What's inside:
  - MiniMax_H3_Reference_to_Image.json: ComfyUI workflow (UI format). Drag it onto the ComfyUI canvas or use Workflow > Open.
  - MiniMax_H3_Reference_to_Image_api.json: Same graph in API format, for scripts and the /prompt endpoint.
  - prompt.txt: the exact prompt used in the article

Required models (download each file and put it in the folder shown):
  - minimax_h3_audio_vae_fp32.safetensors
      folder: ComfyUI/models/vae/
      download: https://huggingface.co/Comfy-Org/MiniMax-H3/resolve/main/vae/minimax_h3_audio_vae_fp32.safetensors
  - minimax_h3_ref2va_pruned_int8_convrot.safetensors
      folder: ComfyUI/models/diffusion_models/
      download: https://huggingface.co/Comfy-Org/MiniMax-H3/resolve/main/diffusion_models/minimax_h3_ref2va_pruned_int8_convrot.safetensors
  - minimax_h3_video_vae_int8_convrot.safetensors
      folder: ComfyUI/models/vae/
      download: https://huggingface.co/Comfy-Org/MiniMax-H3/resolve/main/vae/minimax_h3_video_vae_int8_convrot.safetensors
  - qwen3vl_32b_minimax_h3_nvfp4_awq.safetensors
      folder: ComfyUI/models/text_encoders/
      download: https://huggingface.co/Comfy-Org/MiniMax-H3/resolve/main/text_encoders/qwen3vl_32b_minimax_h3_nvfp4_awq.safetensors

Custom nodes:
  - None. Every node is part of ComfyUI core (update ComfyUI to the latest version).

How to use:
  1. Update ComfyUI (all nodes are core) and restart.
  2. Download the four model files into the folders listed.
  3. Drag MiniMax_H3_Reference_to_Image.json onto the canvas.
  4. Load your identity image in the first Load Image node (<Picture 1>) and your scene image in the second (<Picture 2>).
  5. Edit the prompt (a copy is in prompt.txt) and queue. SaveImage writes frame 0 as a PNG.

Notes:
  - No custom nodes are needed.

Model weights are not included. Each model keeps its own licence; check the model page before commercial use.
Workflow shared by FreakyJolly.com.
