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Image model

Luma UNI-1

Luma UNI-1 is a unified understanding-and-generation image model for text-to-image, natural-language edits, and multi-reference direction.

Model IDluma/uni-1
Open in playgroundRead the docs

API

Call Luma UNI-1

Every model takes the same request, so switching to Luma UNI-1 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: "luma/uni-1",
  prompt: "A lighthouse at dusk, 35mm film",
  size: "16:9",
});

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

Specifications

What Luma UNI-1 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
  • Up to 9 reference images
Image → Image
  • 1 source image · required
  • Up to 9 reference images
  • 9 in total

Input roles

source
The image to edit
reference
An image to take style or content from

A role goes in inputs[].as. Leave it out, or send auto, and Mynth assigns one the model accepts.

Output

Aspect ratios
  • 1:1
  • 2:1
  • 16:9
  • 3:2
  • 2:3
  • 9:16
  • 1:2

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": {
      "inputs": {
        "rules": [
          {
            "type": "image",
            "kind": "reference",
            "max": 9
          }
        ]
      }
    },
    "img->img": {
      "inputs": {
        "rules": [
          {
            "type": "image",
            "kind": "source",
            "min": 1,
            "max": 1
          },
          {
            "type": "image",
            "kind": "reference",
            "max": 9
          }
        ],
        "maxTotal": 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
$0.042 / image
Input image
$0.003 / 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

$0.0421 × $0.042

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

Related

Other models to consider

More from Luma

  • Luma UNI-1 Max
    luma/uni-1-max

    Text → ImageImage → Image

    $0.102 / image

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