Get started: Add-on
The Google Workspace add-on runs inside Google’s own apps, in any browser: a sidebar in Docs, Sheets, Slides and Forms, cards in Gmail and Drive, the GPT formulas in Sheets and the Google Chat app.
1. Install from the Marketplace
Section titled “1. Install from the Marketplace”Open the GPT Workspace listing on the Google Workspace Marketplace and click Install, then Continue and accept the permissions.

Single-app listings exist too if you only want one app: AI for Sheets, AI Docs, AI Slides, AI Forms and GPT for Gmail.
2. Open the sidebar
Section titled “2. Open the sidebar”In Google Docs, Sheets, Slides or Forms, click Extensions ➤ GPT Workspace ➤ ▶️ Start. The first time, Google asks you to authorize the add-on.

The sidebar opens on the right with the chat and starters for the current file.

The sidebar is the same chat as on gpt.space/app, fitted to the width of the Google sidebar.

In Gmail and Drive, the add-on is a card in the right-hand panel; see How to launch the Gmail and Drive add-on.
3. Enable GPT formulas in Google Sheets
Section titled “3. Enable GPT formulas in Google Sheets”The formulas are enabled per spreadsheet. Click Extensions ➤ GPT Workspace ➤ 🔸 Enable GPT formulas. A dialog confirms that GPT, GPT_LIST, GPT_TABLE, GPT_TRANSLATE, GPT_WEB, GPT_IMAGE, GPT_COMPLETE and GPT_CLASSIFY are now available in this spreadsheet.

The menu also has 🎛️ Formula controls (refresh or freeze formulas), 🔄 Retry errors and 🛟 Documentation, see Formula controls and retry errors. The last entry is 💳 Billing or ⭐ Upgrade now.