MiniMax H3 Image
Realistic 4K images in about 10 seconds, from a prompt or up to 16 reference images.
MiniMax H3 Image: Realistic 4K Images in Seconds
MiniMax H3 Image is MiniMax’s new image model, and you can use it on Mitte right now. Describe an image and get it. Attach photos and say what should change. A full 4K image comes back in about 10 seconds, which makes high resolution something you can use on every run, drafts included.
The images hold up when you zoom in. Skin, fabric, foliage and surfaces carry fine texture, and the plastic, airbrushed finish that marks so many AI images is gone.
It also listens. Long prompts with a lot of specifics (who stands where, what the light does, which details matter) come back the way you wrote them. And when words aren’t enough, hand it up to 16 reference images.
What can you do with it?
- Generate from a brief. Describe the subject, the style, the light and the composition. Photoreal scenes, illustrations and visual designs all work.
- Go straight to 4K. Posters, prints, hero images and anything you plan to crop hard. 4K carries far more detail than 1K or 2K, and you no longer wait minutes for it.
- Edit with plain language. Attach an image and type “make it dusk”, “remove the chair on the left”, “swap the jacket for a denim one”.
- Combine up to 16 references. A person from one image, clothes from another, a location from a third. Name each one in the prompt and say what it contributes.
- Restyle an image. Turn a photo into an illustration, a render into a painting, a sketch into a finished piece.
- Iterate fast. Run a handful of variations, pick the keeper and refine it. Switch to Highspeed when you want results even sooner.
How to use it
- Write the prompt. Subject, style, light, composition. For an edit, say what changes and what stays.
- Attach references (optional). One image for a direct edit, several when you’re combining elements. Refer to them as Image 1, Image 2 and so on, in the order you attached them.
- Choose ratio and resolution. Square, landscape, portrait or cinematic 21:9, at 1K, 2K or 4K. Editing? Pick Auto and the output matches your source image.
- Pick a speed. Standard for everyday work, Highspeed when you’re in a hurry.
- Generate. Download the results, share them, or keep editing right on Mitte.
What you get
Up to 4 images per run in JPEG, PNG or WebP, at 1K, 2K or 4K, in your chosen ratio. With Auto, the output keeps the shape of your source image.
Tips
- Write short, let it expand. By default a brief prompt gets rewritten into a fuller description before the image is made. Already wrote every detail yourself? Turn off Expand Prompt in the settings and your words are used exactly.
- Say what stays. “Change the background to a pine forest. Keep the person, the pose and the lighting.” Naming what shouldn’t move is the fastest way to a clean edit.
- Number your references. “The person in Image 1, wearing the coat from Image 2, standing in the street from Image 3.”
- Draft at 1K, finish at 4K. Find the direction with quick runs, then rerun the keeper at full resolution with the same prompt.
- Use Auto ratio when editing. It keeps the output the same shape as your input, so nothing gets cropped or stretched.
- Describe texture. The model is good at surface detail, so ask for it: weathered wood, wet asphalt, brushed linen, film grain.