# Source: https://docs.livekit.io/agents/models/stt/plugins/google.md

# Source: https://docs.livekit.io/agents/models/tts/plugins/google.md

# Source: https://docs.livekit.io/agents/integrations/google.md

# Source: https://docs.livekit.io/agents/models/tts/plugins/google.md

# Source: https://docs.livekit.io/agents/models/stt/plugins/google.md

LiveKit docs › Models › STT › Plugins › Google

---

# Google Cloud STT plugin guide

> How to use the Google Cloud STT plugin for LiveKit Agents.

Available in:
- [ ] Node.js
- [x] Python

## Overview

This plugin allows you to use [Google Cloud STT](https://cloud.google.com/speech-to-text) as an STT provider for your voice agents.

## Quick reference

This section includes a basic usage example and some reference material. For links to more detailed documentation, see [Additional resources](#additional-resources).

### Installation

Install the plugin from PyPI:

```shell
uv add "livekit-agents[google]~=1.3"

```

### Authentication

Google Cloud credentials must be provided by one of the following methods:

- Passed in the `credentials_info` dictionary.
- Saved in the `credentials_file` JSON file (`GOOGLE_APPLICATION_CREDENTIALS` environment variable).
- Application Default Credentials. To learn more, see [How Application Default Credentials works](https://cloud.google.com/docs/authentication/application-default-credentials)

### Usage

Use a Google Cloud STT in an `AgentSession` or as a standalone transcription service. For example, you can use this STT in the [Voice AI quickstart](https://docs.livekit.io/agents/start/voice-ai.md).

```python
from livekit.plugins import google

session = AgentSession(
  stt = google.STT(
    model="chirp",
    spoken_punctuation=False,
  ),
  # ... llm, tts, etc.
)

```

### Parameters

This section describes some of the available parameters. See the [plugin reference](https://docs.livekit.io/reference/python/v1/livekit/plugins/google/index.html.md#livekit.plugins.google.STT) for a complete list of all available parameters.

- **`languages`** _(LanguageCode)_ (optional) - Default: `en-US`: Specify input languages. For a full list of supported languages, see [Speech-to-text supported languages](https://cloud.google.com/speech-to-text/docs/speech-to-text-supported-languages).

- **`spoken_punctuation`** _(boolean)_ (optional) - Default: `True`: Replace spoken punctuation with punctuation characters in text.

- **`model`** _(SpeechModels | string)_ (optional) - Default: `long`: Model to use for speech-to-text. To learn more, see [Select a transcription model](https://cloud.google.com/speech-to-text/docs/transcription-model).

- **`credentials_info`** _(array)_ (optional): Key-value pairs of authentication credential information.

- **`credentials_file`** _(string)_ (optional): Name of the JSON file that contains authentication credentials for Google Cloud.

## Additional resources

The following resources provide more information about using Google Cloud with LiveKit Agents.

- **[Python package](https://pypi.org/project/livekit-plugins-google/)**: The `livekit-plugins-google` package on PyPI.

- **[Plugin reference](https://docs.livekit.io/reference/python/v1/livekit/plugins/google/index.html.md#livekit.plugins.google.STT)**: Reference for the Google Cloud STT plugin.

- **[GitHub repo](https://github.com/livekit/agents/tree/main/livekit-plugins/livekit-plugins-google)**: View the source or contribute to the LiveKit Google Cloud STT plugin.

- **[Google Cloud docs](https://cloud.google.com/speech-to-text/docs)**: Google Cloud STT docs.

- **[Voice AI quickstart](https://docs.livekit.io/agents/start/voice-ai.md)**: Get started with LiveKit Agents and Google Cloud STT.

- **[Google ecosystem guide](https://docs.livekit.io/agents/integrations/google.md)**: Overview of the entire Google AI and LiveKit Agents integration.

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This document was rendered at 2026-02-03T03:25:03.597Z.
For the latest version of this document, see [https://docs.livekit.io/agents/models/stt/plugins/google.md](https://docs.livekit.io/agents/models/stt/plugins/google.md).

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