> ## Documentation Index
> Fetch the complete documentation index at: https://openrouter.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# ImageGenerationRequestAspectRatio

Normalized aspect ratio of the generated image. Providers clamp to their supported subset.

## Example Usage

```go theme={null}
import (
	"github.com/OpenRouterTeam/go-sdk/models/components"
)

value := components.ImageGenerationRequestAspectRatioEleven

// Open enum: custom values can be created with a direct type cast
custom := components.ImageGenerationRequestAspectRatio("custom_value")
```

## Values

| Name                                                          | Value  |
| ------------------------------------------------------------- | ------ |
| `ImageGenerationRequestAspectRatioEleven`                     | 1:1    |
| `ImageGenerationRequestAspectRatioTwelve`                     | 1:2    |
| `ImageGenerationRequestAspectRatioFourteen`                   | 1:4    |
| `ImageGenerationRequestAspectRatioEighteen`                   | 1:8    |
| `ImageGenerationRequestAspectRatioTwentyOne`                  | 2:1    |
| `ImageGenerationRequestAspectRatioTwentyThree`                | 2:3    |
| `ImageGenerationRequestAspectRatioThirtyTwo`                  | 3:2    |
| `ImageGenerationRequestAspectRatioThirtyFour`                 | 3:4    |
| `ImageGenerationRequestAspectRatioFortyOne`                   | 4:1    |
| `ImageGenerationRequestAspectRatioFortyThree`                 | 4:3    |
| `ImageGenerationRequestAspectRatioFortyFive`                  | 4:5    |
| `ImageGenerationRequestAspectRatioFiftyFour`                  | 5:4    |
| `ImageGenerationRequestAspectRatioEightyOne`                  | 8:1    |
| `ImageGenerationRequestAspectRatioNineHundredAndSixteen`      | 9:16   |
| `ImageGenerationRequestAspectRatioOneHundredAndSixtyNine`     | 16:9   |
| `ImageGenerationRequestAspectRatioNineHundredAndNineteenDot5` | 9:19.5 |
| `ImageGenerationRequestAspectRatioNineteenDot59`              | 19.5:9 |
| `ImageGenerationRequestAspectRatioNineHundredAndTwenty`       | 9:20   |
| `ImageGenerationRequestAspectRatioTwoHundredAndNine`          | 20:9   |
| `ImageGenerationRequestAspectRatioNineHundredAndTwentyOne`    | 9:21   |
| `ImageGenerationRequestAspectRatioTwoHundredAndNineteen`      | 21:9   |
| `ImageGenerationRequestAspectRatioAuto`                       | auto   |