Onyx Basic – MiniMax H3 Image (T2I + Edit)

Two clean, simple workflows for MiniMax H3 Image, built on native ComfyUI nodes (+ CRT for grain). Ultra-realistic smartphone-style photos at native 16 MP in 6 steps.

T2I – write a detailed English description and run.
Edit – up to 4 reference images (<Picture 1>, <Picture 2>…): keep your character, change outfit, scene or pose. Official MiniMax prompt enhancer built in (on/off): a short instruction is enough, it writes the full description for you.

Included settings

• 6 steps, CFG 1, 16 MP 3:4 (adjustable)

• Comfy Kitchen attention for speed

• HDR VAE + CRT film grain for the iPhone look

Requirements

• ComfyUI 0.45.0+

• All model links are in the note on the left of the workflow

• CRT Post-Process Suite node (ComfyUI Manager)
  
  VAE :
  https://civarchive.com/models/3045662/minimax-image-hdr-vae-comfy-update

More ressources and support on discord : https://discord.gg/RsYnJzZNG