H3 Image Advanced by MiniMax

## Overview

MiniMax H3 Image Advanced gives you the full set of H3 Image controls. Generate an image from a prompt, edit one image, or combine up to 16 input images into one result. You can set an exact output size and choose whether the prompt is expanded before generation.

## What you can build

- Compositions that combine a subject, a scene and a style from different images

- Edits such as background swaps, wardrobe or material changes and object replacements

- Images at an exact size for layouts, banners or print

- Product shots, concept art and storyboards with consistent subjects

## Inputs

- A prompt describing the image to create, or the change to make and what must stay the same (up to 4,096 characters; longer text is cut). Refer to input images as Image 1, Image 2 and so on, in upload order.

- Up to 16 optional input images (JPEG, PNG or WebP), each 128 to 8,192 pixels per side. Without an image, the model generates from the prompt.

- An aspect ratio: auto, 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3, 5:4, 4:5, 21:9 or 9:21. With an input image, auto keeps its ratio; without one, auto uses 16:9.

- A resolution: 1K, 2K or 4K (about 1024×1024, 2048×2048 or 4096×4096 pixels, shaped to the aspect ratio).

- An optional exact width and height in pixels, used instead of the aspect ratio and resolution. Width × height must be 655,360 to 20,000,000 pixels, with a ratio between 1:3 and 3:1.

- The number of images to generate, from 1 to 10.

- The output format: JPEG, PNG or WebP.

- Prompt expansion on or off. When on, the prompt is rewritten into a detailed description before generation. Edits with input images always use it. Turning it off needs a width and height, or an aspect ratio other than auto.

## Outputs

- One to ten images in the chosen format, at the chosen size.

## Recommended settings

- With several input images, say which image provides what, for example "the woman from Image 1 in the café from Image 2".

- Turn prompt expansion off when you have already written a detailed prompt and want it used as written.

- Use an exact width and height when you need a fixed canvas.

## Limitations

- No mask-based editing: you can't limit a change to a painted area.

- No transparent backgrounds.

- Sizes outside 655,360 to 20,000,000 pixels, or ratios beyond 1:3 and 3:1, aren't accepted.

- Small text, logos and fine details can drift; check the results.

## Safety & compliance

- MiniMax runs content safety checks and may block a request or an image.

- Only upload images you have the right to use, and get consent before editing photos of identifiable people.