MiniMax H3 Image is now available in ComfyUI
MiniMax H3 Image, MiniMax's open-weights image model, is now natively supported in ComfyUI, handling both text-to-image and reference-image editing from a single checkpoint with six sampling steps at guidance 1 and native output up to 4096×4096. It can run on your own GPU with downloaded weights or via Partner Nodes, and it shares its Qwen3-VL text encoder with the MiniMax H3 video model already supported in ComfyUI. The MiniMax H3 Image Conditioning node supports multi-reference editing via <Picture n> prompt tags, prompts up to 4096 tokens, and automatic sizing that defaults to 2048×2048 for text-to-image or follows image_1 when images are connected.
Why it matters: It gives ComfyUI users concrete setup details, fixed sampling parameters, and resolution options for a newly supported open-weights image model.