How to connect ChatGPT to Google Docs
You can connect ChatGPT to Google Docs with the GPT for Docs add-on:
Step 1: Install the GPT for Sheets and Docs add-on
Install from the marketplace: https://workspace.google.com/marketplace/app/gpt_for_sheets_and_docs/677318054654
Step 2: Launch GPT for Sheets and Docs
In a Google document, go to Extensions > GPT for Sheets and Docs > Launch
Step 3: Use ChatGPT in Google Docs
ChatGPT is now connected to Google Docs, and you can ask it anything via the sidebar, using the model you want (currently gpt-4o, gpt-5, gpt-4.1, and more), with or without an API key.