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

# TTS (Text to Speech)

> Call /audio/speech with the PHP SDK.

**Method**: `$client->createSpeech(...)`

### Example

```php theme={null}
<?php

require 'vendor/autoload.php';

use AIStats\Sdk\AIStats;

$client = new AIStats(getenv('AI_STATS_API_KEY'));
$audioFile = $client->createSpeech([
    'model' => 'openai/gpt-4o-mini-tts',
    'input' => 'Hello world',
    'voice' => 'alloy',
    'format' => 'mp3'
]);
file_put_contents('output.mp3', $audioFile->fread($audioFile->getSize()));
```

### Key parameters

* `model` (required): TTS-capable model id.
* `input` (required): Text to synthesize.
* `voice`: Voice preset (model-dependent, e.g., `alloy`).
* `format`: `mp3`, `wav`, `flac`, etc.
* `speed`: Playback speed multiplier (typically 0.25–4).

### Returns

Audio binary (\SplFileObject)