> ## 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.

# ImageGenerationRequestOutputFormat

Encoding of the returned image bytes. Most models produce raster formats (png, jpeg, webp). SVG is supported by vectorization models (e.g. Quiver) — the SVG markup is UTF-8 base64-encoded in `b64_json`.

## Example Usage

```python theme={null}
from openrouter.components import ImageGenerationRequestOutputFormat

# Open enum: unrecognized values are captured as UnrecognizedStr
value: ImageGenerationRequestOutputFormat = "png"
```

## Values

This is an open enum. Unrecognized values will not fail type checks.

* `"png"`
* `"jpeg"`
* `"webp"`
* `"svg"`