MiniMax H3 Image gains native ComfyUI support
Comfy Blog reports that MiniMax H3 Image is now supported natively in ComfyUI, with open weights available for local GPU execution or API access through Partner Nodes. The single checkpoint handles text-to-image generation and reference-image editing, including multi-reference workflows with numbered image inputs. Comfy Blog also says the CFG-distilled model uses six fixed sampling steps at guidance 1 and supports native output up to 4096×4096 and larger aspect-ratio resolutions.
The integration makes MiniMax's open-weights image model directly usable in ComfyUI for both local and API-based generation and editing workflows.
MiniMax H3 Image is now supported natively in ComfyUI. Open weights, six sampling steps, and output at 4096×4096. One model covers text-to-image and reference-image editing. It runs on your own hardware, and it is also available via Partner Nodes.
Model Introduction
MiniMax H3 Image is MiniMax’s open-weights image model. It generates from a prompt, and it edits when you hand it reference images. Same checkpoint, same graph. A run with images connected is an image edit workflow. A run without is text-to-image.
It shares its Qwen3-VL text encoder with MiniMax H3, the video model already supported in ComfyUI. If you run MiniMax H3 today, you already have that file.
The model is CFG-distilled and samples in six steps at guidance 1. Those values are fixed by the checkpoint, so there is nothing to tune and no negative prompt to write.
There are two ways to run it in ComfyUI:
#MiniMax H3 Image#ComfyUI#MiniMax#MiniMax H3#Qwen3-VL#MiniMax H3 Image Prompt Enhancer