Call MiniMax H3

Every model takes the same request, so switching to MiniMax H3 is a change to the model field. These samples are written for its own contract and send as they are.

import Mynth from "@mynthio/sdk";

const mynth = new Mynth();

const task = await mynth.image.generate({
  model: "minimax/h3",
  prompt: "A lighthouse at dusk, 35mm film",
  size: "16:9",
});

console.log(task.urls[0]);

Specifications

What MiniMax H3 accepts

Read from the same registry the API validates against. A request outside it is refused when the task is created, before anything is charged.

Modes and inputs

Text → Image: Prompt only
Image → Image: 1–9 images · required
The model picks its own output size

Output

Aspect ratios: 1:1
1:2
2:1
1:3
3:1
2:3
3:2
3:4
4:3
4:5
5:4
9:16
16:9
9:21
21:9
Leave out size, or send auto, and Mynth picks one for the prompt. Any other ratio snaps to the closest of these. Sizes
4K: No. A 4k size fails the task

Prompt

Negative prompt: Not supported. Dropped before the provider call, no error

The contract as GET /models returns it

{
  "modes": {
    "txt->img": {},
    "img->img": {
      "inputs": {
        "rules": [
          {
            "type": "image",
            "min": 1,
            "max": 9
          }
        ]
      }
    }
  }
}

Pricing

What it costs

Pay per result, in USD, with no subscription. A failed image or video costs nothing. How pricing works

Rates

Image: $0.06 / image
Input image: $0.03 / input

An input is charged once for every image it goes into: two inputs on four images are eight input charges.

Estimate a request

Images

1

Input images

0

$0.061 × $0.06

Held when the task is created. Only images that succeed are charged.

FLUX.2 Flex
black-forest-labs/flux.2-flex
Text → ImageImage → Image
$0.06 / image
Ideogram 4.5
ideogram/ideogram-4.5
Text → ImageImage → Image
$0.06 / image
Grok Imagine Image 2.0
xai/grok-imagine-image-2.0
Text → ImageImage → Image
$0.06 / image
Qwen Image 2.0 Pro
alibaba/qwen-image-2.0-pro
Text → ImageImage → Image
$0.07 / image
FLUX.2 Max
black-forest-labs/flux.2-max
Text → ImageImage → Image
$0.07 / image