How to Use Gemini in 2026: The Complete Guide

Gemini pays off hardest for Workspace users. This guide takes you through the integrations that matter.

Table of contents

• Setup
• In Gmail and Docs
• Gems
• Deep Research
• FAQ

Setup

Sign in with your Workspace account. Enable Gemini in Gmail, Docs and Sheets.

In Gmail and Docs

Draft replies with 'Help me write', summarize threads, and generate briefs from docs.

Gems

Build a Gem per repeat task: 'Meeting recap', 'Sheet auditor', 'Weekly report writer'.

Deep Research

Kick off a research plan, then review and refine. Great for market and competitor scans.

Common mistakes

• Not turning on Workspace integration
• Skipping Gems
• Copy-pasting instead of editing in-place

FAQ

Do I need AI Pro?

For Deep Research and 1M-token contexts — yes.