> ## 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.

# CreateAudioSpeechRequest

## Example Usage

```typescript theme={null}
import { CreateAudioSpeechRequest } from "@openrouter/sdk/models/operations";

let value: CreateAudioSpeechRequest = {
  speechRequest: {
    input: "Hello world",
    model: "mistralai/voxtral-mini-tts-2603",
  },
};
```

## Fields

| Field           | Type                                                   | Required             | Description                                                                                                                                                 | Example                                                                                                                                                                    |
| --------------- | ------------------------------------------------------ | -------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `httpReferer`   | *string*                                               | :heavy\_minus\_sign: | The app identifier should be your app's URL and is used as the primary identifier for rankings.<br />This is used to track API usage per application.<br /> |                                                                                                                                                                            |
| `appTitle`      | *string*                                               | :heavy\_minus\_sign: | The app display name allows you to customize how your app appears in OpenRouter's dashboard.<br />                                                          |                                                                                                                                                                            |
| `appCategories` | *string*                                               | :heavy\_minus\_sign: | Comma-separated list of app categories (e.g. "cli-agent,cloud-agent"). Used for marketplace rankings.<br />                                                 |                                                                                                                                                                            |
| `speechRequest` | [models.SpeechRequest](../../models/speechrequest.mdx) | :heavy\_check\_mark: | N/A                                                                                                                                                         | \{<br />"input": "Hello world",<br />"model": "mistralai/voxtral-mini-tts-2603",<br />"response\_format": "pcm",<br />"speed": 1,<br />"voice": "en\_paul\_neutral"<br />} |