# Select a model in GPT for Docs

[GPT for Docs](https://autosheet.com/docs/gpt-for-docs) supports a [range of models](https://autosheet.com/docs/resources/models/ai-providers-and-models) that you can use with your AI work in Docs.

The available models depend on **the API keys set for your current space**. GPT for Docs gives you access to a default set of built-in models. To access additional models, [set an API key for one or more AI providers](https://autosheet.com/docs/gpt-for-docs/setup/manage-models/manage-api-keys).

## Select a built-in model

1. Open a Google document.

2. In the menu bar, select **Extensions > GPT for Sheets – Autosheet > Launch**.

   ![Launch GPT for Docs](https://autosheet.com/docs/article-images/gpt-for-docs/launch.png)

3. Open the model settings.

   ![Select a model](https://autosheet.com/docs/article-images/gpt-for-docs/expand-model-settings.png)

4. Under **No API key needed**, select a model.

   ![Select a model](https://autosheet.com/docs/article-images/gpt-for-docs/model-switcher-tk.png)

GPT for Docs now uses the selected model to generate responses.

## Select a connected model

1. Open a Google document.

2. In the menu bar, select **Extensions > GPT for Sheets – Autosheet > Launch**.

   ![Launch GPT for Docs](https://autosheet.com/docs/article-images/gpt-for-docs/launch.png)

3. Open the model settings.

   ![Select a model](https://autosheet.com/docs/article-images/gpt-for-docs/expand-model-settings.png)

4. Under **Use your API key**, select a model.

   ![Select a model](https://autosheet.com/docs/article-images/gpt-for-docs/model-switcher-byok.png)

GPT for Docs now uses the selected model to generate responses.

## What's next

Learn more about models:

- [AI providers and models supported by Autosheet](https://autosheet.com/docs/resources/models/ai-providers-and-models)
- [LiveBench (a good model benchmark)](https://livebench.ai/)