MiniMax H3 Day-0 Support in ComfyUI: Open Weights, Native Audio, and 2K Video

MiniMax H3 Day-0 Support in ComfyUI: Open Weights, Native Audio, and 2K VideoAn open-weights omni-modal video model with real stereo sound and 2K output — this powerful model is greatly optimized in ComfyUI and can run locally on a 3060.Rob and Alexis RollandAug 03, 202642ShareMiniMax H3 dropped today with open weights, and it’s natively supported in ComfyUI as of this morning. Day zero.This is a next-generation open-weights video model. Feed it text, images, video, or audio and it generates video with real stereo sound, up to 2K, up to 15 seconds a clip. It is MiniMax’s third-generation video model, following Hailuo 01 and Hailuo 02, and the first the company has released with open weights.Try on Comfy CloudModel HighlightsText-to-video — prompt only.Image-to-video — bring an image to life.First-and-last-frame — control the opening frame, the closing frame, or both, and let the model fill in the rest.Reference-to-video — supply reference images, video, or audio and carry a subject, a motion, or a voice through the clip.Output runs to 2K and up to 15 seconds. Audio is generated with the video in the same pass, in stereo, not bolted on afterward.Multimodal context understandingThis is the capability MiniMax leads with, and it’s what collapses five separate tasks into one model. Real work rarely draws on one modality. H3 takes images, audio, and video together and resolves them against a prompt that explains how they relate. Describe the relationship between your inputs and the shot you want, and the model handles the cross-modal work itself.Native stereo audioAudio is a property of the model, not a post-process. Every audio output is native stereo.Editing and motion transferMotion transfer is the one that matters most for graph work. A reference video can supply movement — a camera move, a performance, a cutting rhythm — while the subject and style come from elsewhere. Combined with in-place editing, that means iterating on a shot.Example OutputsBold comic-book ink style, heavy linework, red and blue-black palette, night city. Use <Picture 2> and <Picture 1> as reference frames and <Audio 1> exactly as it is. CUT 1: top-down view of the little boy superhero on the rooftop — red cape fluttering in the wind, hands planted on his hips, freckles and a cocky grin as he looks straight up into the camera. The camera slowly descends toward him as he delivers his line — as he speaks, comic-book graphic overlay text word by word in sync with his voice: "GET READY TO" - "MEET" — "YOUR" — "MAKER" — huge jagged comic lettering, white with heavy black outlines and red drop shadows, tilted at scrappy angles, until the three words hang stacked in the air above him between his face and the lens. TRANSITION: a violent WHIP PAN off the rooftop that SMEARS the floating words away with it, motion-streaked — CUT 2: low hero angle on the colossal black mech-kaiju towering over the skyline as it rears back and unleashes a GIANT terrifying ROAR — jaws wide with fangs, red eyes and chest-core flaring blinding bright, blue lightning arcing off its head, the roar's shockwave rippling dust and rattling windows down the buildings, comic-style speed-lines and ink splatter bursting from the impact of the sound. It leans INTO the camera as the roar peaks. Hold on the roar.Editorial tech product film. The transparent gaming mouse from <Picture 1> in its original scene: a pitch-black studio void with a dark, subtle reflective surface, lit by dramatic duotone vibrant blue and warm neon orange rim lighting, deep soft shadow falloff into pure black. Monochromatic dark palette with electric blue and amber accents. Material motif: glowing internal metallic micro-components and glossy acrylic refractions. The environment is constant throughout. SHOT 1: The scene opens exactly on image 1, the mouse resting confidently on the dark surface; the blue and orange lights slowly pulse brighter, refracting deeply through the transparent acrylic shell as the camera executes a s