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