> ## Documentation Index
> Fetch the complete documentation index at: https://openrouter-d02e98a0-mintlify-5b6e02fd.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# ChatAudioOutput - Python SDK

> ChatAudioOutput method reference

<Warning>
  The Python SDK and docs are currently in beta.
  Report issues on [GitHub](https://github.com/OpenRouterTeam/python-sdk/issues).
</Warning>

Audio output data or reference

## Fields

| Field        | Type             | Required             | Description                |
| ------------ | ---------------- | -------------------- | -------------------------- |
| `data`       | *Optional\[str]* | :heavy\_minus\_sign: | Base64 encoded audio data  |
| `expires_at` | *Optional\[int]* | :heavy\_minus\_sign: | Audio expiration timestamp |
| `id`         | *Optional\[str]* | :heavy\_minus\_sign: | Audio output identifier    |
| `transcript` | *Optional\[str]* | :heavy\_minus\_sign: | Audio transcript           |