← All thirteen capabilities

Capability 11

Inside your other apps.

Exact name In-app assistant

Step 01 · Chat
01

What it is.

The tool built into another app you already use, such as Word, Excel, Outlook, your browser or Slack, so you can use it without opening its own chat. It also includes the vendor's own messaging apps, like Meta AI inside WhatsApp or the Grok tab on X.

02

What your tool calls it.

Your tool · ChatGPT ChatGPT for Excel ChatGPT for Google Sheets ChatGPT for Word ChatGPT for PowerPoint ChatGPT browser extension ChatGPT for Word / Excel / PowerPoint · ChatGPT for Google Sheets · ChatGPT browser extension
  • ChatGPT for Excel: A ChatGPT add-in that works inside Microsoft Excel workbooks.
  • ChatGPT for Google Sheets: A ChatGPT add-on that works inside Google Sheets.
  • ChatGPT for Word: The same ChatGPT Microsoft add-in, used inside Word documents. Plugins don't work there yet.
  • ChatGPT for PowerPoint: The ChatGPT Microsoft add-in, used inside PowerPoint decks.
  • ChatGPT browser extension: A browser extension that brings ChatGPT into Chrome, Edge, Brave, Opera or Vivaldi. The side chat doesn't work in Opera.

Also at ChatGPT: ChatGPT Atlasretired

Your tool · Claude Claude for Excel Claude for PowerPoint Claude for Word Claude for Outlook Claude in Chromebeta Claude Tag Claude for Excel / PowerPoint · Claude for Word · Claude for Outlook · Claude in Chrome (beta) · Claude Tag in Slack
  • Claude for Excel: An Excel add-in that runs Claude inside workbooks. It shares conversation context with the PowerPoint add-in and supports skills.
  • Claude for PowerPoint: A PowerPoint add-in that runs Claude inside presentations (launched Feb 5, 2026).
  • Claude for Word: A Word add-in that runs Claude inside documents. It shares context with the Excel, PowerPoint and Outlook add-ins.
  • Claude for Outlook: An Outlook add-in that lets Claude read and act on email threads, working alongside the other Office add-ins.
  • Claude in Chrome: A Chrome extension that lets Claude read pages, click, type and move around websites for you. You can also run it from Cowork or Claude Code.
  • Claude Tag: Lets Team and Enterprise users mention Claude in Slack conversations and hand it tasks.
Your tool · Gemini Gemini in Chrome Gemini side panel in Google Workspace
  • Gemini in Chrome: Gemini inside the Chrome browser, including a side panel and "auto browse," which lets Gemini operate websites for tasks.
  • Gemini side panel in Google Workspace: A Gemini panel inside Workspace apps where Gems you made in the web app also appear.
Your tool · Microsoft Copilot Copilot Chat in Word, Excel, PowerPoint, and OneNote Edit with Copilot in Word, Excel, PowerPoint, and OneNote Copilot in Outlook Copilot in Teams Microsoft Copilot Chat in the Edge sidebar Copilot in Outlook · Copilot Chat in Word, Excel, PowerPoint and OneNote · Edit with Copilot (paid) · Copilot in Teams · Copilot Chat in Edge
  • Copilot Chat in Word, Excel, PowerPoint, and OneNote: The Copilot chat pane inside these Office apps, working with the document you have open.
  • Edit with Copilot in Word, Excel, PowerPoint, and OneNote: not described on a first-party page read beyond its name. Its support link sits under a "copilot-frontier" path.
  • Copilot in Outlook: Copilot inside Outlook. A secondary source says free Copilot Chat can answer questions about your inbox and calendar there.
  • Copilot in Teams: Copilot inside Teams chats, channels and meetings.
  • Microsoft Copilot Chat in the Edge sidebar: Copilot Chat opened from the sidebar of the Edge browser.

Also at Microsoft Copilot: Microsoft Copilot

Your tool · Perplexity Comet Perplexity in Slack Comet browser · Perplexity in Slack
  • Comet: Perplexity's web browser, built on Chromium, with built-in AI that can summarise, search and act across your open tabs.
  • Perplexity in Slack: Lets you get Perplexity answers inside your Slack workspace.

Also at Perplexity: Comet Assistant

Your tool · Grok Shared Bots Grok on X Grok for Outlook Grok for Word Grok for Excel Grok for PowerPoint Grok for Outlook · Word / Excel / PowerPoint · Grok tab on X · Shared Bots in Slack
  • Shared Bots: A Grok Bot published for a team to use together as one Bot, which colleagues can also talk to in Slack. A separate option shares a copy of a Bot's setup by link.
  • Grok on X: Grok used inside the X app or site through a Grok tab. It draws on the same paid usage allowance.
  • Grok for Outlook: A Microsoft 365 add-in that puts Grok inside Outlook.
  • Grok for Word: A Microsoft 365 add-in that puts Grok inside Word.
  • Grok for Excel: A Microsoft 365 add-in that puts Grok inside Excel, for questions in plain English and writing formulas.
  • Grok for PowerPoint: A Microsoft 365 add-in that puts Grok inside PowerPoint.
Your tool · Meta AI and Muse Meta AIsome regions Meta AI inside WhatsApp, Messenger, Instagram, Facebook · Muse in WhatsApp
  • Meta AI: Meta's general chat assistant, in its own app, on meta.ai, and inside WhatsApp, Instagram, Messenger and Facebook. It offers Instant, Thinking and Shopping modes.
Your tool · Mistral Vibe Mistral Vibe for VS Code Vibe Code Web for Slack Mistral Vibe for VS Code · Vibe Code Web for Slack — coding only
  • Mistral Vibe for VS Code: An extension that puts the Vibe panel inside the VS Code editor. It works on your open files and selected code.
  • Vibe Code Web for Slack: A Slack app that starts a remote coding session from a Slack thread and posts the session link back. It is limited to coding tasks.
Pick your tool to see its answer first:
The other seven
03

Why it matters.

It's a different place to work from the tool's own chat window, with different things in reach. The version in your email can see your email.

Some of it needs a paid plan. Microsoft's free Copilot Chat works inside Word, Excel, PowerPoint and OneNote, but Edit with Copilot needs the paid licence.

04

Words that trip people up.

  • Many names, one idea. "ChatGPT for Word", "Claude for Excel", "Copilot in Outlook", "Grok for PowerPoint", "Gemini in Chrome". The pattern is "{tool} for {app}" or "{tool} in {app}".
  • Copilot Chat in Word and Edit with Copilot are separate features with separate licences.
  • Browsers. Perplexity's Comet is a browser of its own; Claude in Chrome and Gemini in Chrome work inside Chrome.
  • Mistral's in-app versions are for coding only: VS Code and a coding tool in Slack.
07

What this step asks of you.

Step 01 · Chat

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