Bottom line
If your organization has not bought a Copilot add-on or a Copilot bundle, you have Copilot Chat, not Microsoft 365 Copilot.
The names are close, and Microsoft changes them often, so it is easy to assume your team already has the full Copilot experience. Most don’t. Here is what your Microsoft 365 license includes, what the paid license adds, and how to decide who on your team actually needs it.
At a glance
What you have today
Included with most Microsoft 365 business and enterprise plans
The paid license
An add-on or bundle, assigned per person. Some bundles include it, such as Business Premium with Copilot and Microsoft 365 E7.
The same task, two ways
With Copilot Chat
You search your inbox, Teams, and shared files for the relevant notes, then paste or upload them into Copilot Chat and ask for a summary.
Copilot does the writing. You do the gathering.
With Microsoft 365 Copilot
You ask: “What has happened with this client over the last month, and what did we commit to?” Copilot pulls from your email, Teams chats, meetings, and files, and gives you a briefing that points back to its sources.
Copilot does the gathering and the writing.
Side by side
| Copilot Chat (included) | Microsoft 365 Copilot (paid) | |
|---|---|---|
| What it knows | The web, plus anything you paste or upload | The web, plus your email, meetings, chats, and files (Microsoft calls this Work IQ) |
| Finding your work | You find it and bring it in | It finds it for you, within the access you already have |
| Inside your apps | Available in Outlook. Other apps are limited | The full experience in Word, Excel, PowerPoint, Outlook, and Teams |
| Teams meetings | Works with notes you paste in | Recaps, summaries, and follow-ups from your meetings |
| Agents | Basic agents only. Building custom agents is billed by usage | Advanced agents like Researcher and Analyst, plus custom agents |
| Speed at busy times | Standard. May be limited at peak times | Priority access |
| Security | Enterprise-grade protection with a work account | The same enterprise-grade protection |
Before you roll it out
Copilot can find anything a person can already open.
In most organizations, that includes files shared more widely than anyone intended: old “Everyone” links, open SharePoint sites, and forgotten guest access. Microsoft 365 Copilot does not create that exposure, but it makes it much easier to find. Review who can see what before you turn it on.
Who it is for
A note on names
Microsoft renames its Copilot products often. In this post, “Copilot Chat” is the AI chat included with most Microsoft 365 plans, and “Microsoft 365 Copilot” is the paid license. Organizations under 300 users buy it as Microsoft 365 Copilot Business, and larger organizations buy Microsoft 365 Copilot. Neither is the same as the consumer Copilot app, GitHub Copilot, or Copilot Studio.
Want to see the difference?
Executech AI Services can set up a short pilot with a few Microsoft 365 Copilot licenses, so your team can compare it with Copilot Chat on everyday tasks and decide who actually needs it.
Sources: Microsoft Support: How Copilot Chat works with and without a Microsoft 365 Copilot license | Microsoft: Introducing Microsoft 365 Copilot Business. Product details reflect Microsoft documentation as of November 2026.
