> ## Documentation Index
> Fetch the complete documentation index at: https://mintlify.com/DecartAI/ai-sdk-provider/llms.txt
> Use this file to discover all available pages before exploring further.

# Image Models

> Available image generation models in the Decart provider

## Model IDs

```typescript theme={null}
type DecartImageModelId = "lucy-pro-t2i";
```

The Decart provider currently supports one image generation model.

## Available Models

### lucy-pro-t2i

Text-to-image generation model powered by Lucy Pro.

**Capabilities:**

* Text-to-image generation
* Seed-based reproducibility
* Aspect ratio control (16:9 and 9:16)

**Supported Settings:**

* `prompt` - Text description of the image to generate
* `seed` - Random seed for reproducible generation
* `aspectRatio` - Only `"16:9"` (landscape) and `"9:16"` (portrait) are supported

**Unsupported Settings:**

* `size` - Will produce a warning if specified
* Other aspect ratios - Will produce a warning if specified

## Usage

### Basic Text-to-Image

```typescript theme={null}
import { createDecart } from '@decartai/ai-sdk-provider';
import { generateImage } from 'ai';

const decart = createDecart();

const { image } = await generateImage({
  model: decart.image('lucy-pro-t2i'),
  prompt: 'A serene mountain landscape at sunset'
});
```

### With Seed for Reproducibility

```typescript theme={null}
import { createDecart } from '@decartai/ai-sdk-provider';
import { generateImage } from 'ai';

const decart = createDecart();

const { image } = await generateImage({
  model: decart.image('lucy-pro-t2i'),
  prompt: 'A futuristic cityscape',
  seed: 12345
});
```

### With Aspect Ratio

```typescript theme={null}
import { createDecart } from '@decartai/ai-sdk-provider';
import { generateImage } from 'ai';

const decart = createDecart();

// Landscape orientation
const { image: landscape } = await generateImage({
  model: decart.image('lucy-pro-t2i'),
  prompt: 'Wide mountain vista',
  aspectRatio: '16:9'
});

// Portrait orientation
const { image: portrait } = await generateImage({
  model: decart.image('lucy-pro-t2i'),
  prompt: 'Tall skyscraper',
  aspectRatio: '9:16'
});
```

## Model Specifications

<ResponseField name="specificationVersion" type="string" default="v2">
  All Decart image models implement the AI SDK v2 specification.
</ResponseField>

<ResponseField name="maxImagesPerCall" type="number" default="1">
  Each generation call produces exactly one image.
</ResponseField>

<ResponseField name="provider" type="string" default="decart.image">
  Provider identifier for the image models.
</ResponseField>

## Response Format

Image models return binary image data with the following structure:

```typescript theme={null}
{
  images: [Uint8Array],
  warnings: Array<ImageModelV2CallWarning>,
  response: {
    modelId: string,
    timestamp: Date,
    headers: Record<string, string>
  }
}
```

## Warnings

The model may return warnings for unsupported settings:

* `unsupported-setting: size` - When `size` parameter is provided
* `unsupported-setting: aspectRatio` - When an unsupported aspect ratio is provided (only 16:9 and 9:16 are supported)