What is Microsoft Copilot?
Microsoft Copilot is the AI assistant built into the Microsoft ecosystem: Windows, Edge, and especially Word, Excel, PowerPoint and Outlook, where it helps write documents, analyze data and prepare presentations directly inside the tools millions of companies already use every day.
After Copilot Pro stopped accepting new customers in October 2025 and existing subscriptions ended in August 2026, the consumer offering consolidated into Microsoft 365 Premium, a single plan that includes Copilot alongside Office apps and storage, simplifying (at least on paper) the choice for end users.
Main Features
- Copilot in Word: generates document drafts and rewrites sections from instructions
- Copilot in Excel: analyzes data, builds formulas and explains complex tables in natural language
- Copilot in PowerPoint: generates whole presentations starting from a document or a topic
- Copilot in Outlook: summarizes long emails and proposes reply drafts
- Copilot in Windows: system assistant accessible from any application
- Copilot Vision: analyzes what's on screen to give contextual suggestions
How Does Microsoft Copilot Work?
Copilot appears as a side panel or shortcut inside every Microsoft app already in use: in Word you can ask it to summarize a document or generate a new one from scratch, in Excel you can ask "which products sold the least this quarter" without writing formulas.
On Windows, Copilot is accessible via a system shortcut and can answer general questions or perform actions on the computer itself, acting as a layer of assistance across all open applications.
Who is Microsoft Copilot for?
- Companies already using Microsoft 365 as their main suite
- Professionals writing documents, managing spreadsheets and preparing presentations daily
- Teams receiving large email volumes wanting to cut management time
- Windows users wanting a built-in system assistant
- Analysts working with Excel data without advanced formula skills
Use Cases
- Generating a report draft from scattered notes in Word
- Analyzing a complex Excel sheet without writing formulas manually
- Creating a PowerPoint presentation from an existing Word document
- Summarizing and replying to long emails in Outlook
- Getting general assistance on Windows without opening a dedicated app
Pricing
Copilot is free on the web, in Windows, in Edge and in the mobile apps, with chat, search and image generation. The standalone Copilot Pro plan no longer exists: using Copilot inside Word, Excel, PowerPoint and Outlook requires a Microsoft 365 subscription. Microsoft 365 Premium costs $19.99/month or $199.99/year and includes Copilot with the highest usage limits alongside the full Office apps, while Microsoft 365 Personal, at $9.99/month, includes Copilot with lower limits.
Pros and Cons
Pros:
- Native, deep integration across the world's most used Office apps
- Drastically cuts time on repetitive tasks in Word, Excel and PowerPoint
- Cross-application presence on Windows, not just inside individual apps
Cons:
- Retiring standalone Copilot Pro made the offering less clear for those not needing all of Microsoft 365
- The most advanced features remain behind the Premium subscription
- Less customizable than a generic chatbot like ChatGPT for creative uses
Final Verdict
Microsoft Copilot is the most natural choice for those already working inside Word, Excel and Outlook every day: the integration saves real time on concrete tasks. For those not using Microsoft 365, the added value shrinks considerably compared to a generic assistant.