Copilot Chat vs Microsoft 365 Copilot Cost for Business

Most small and midsize companies on Microsoft 365 already have Copilot Chat, often without anyone deciding to roll it out. It sits in Edge, in Outlook and in the Microsoft 365 app, and people use it. Then someone sees a demo of Copilot summarizing a Teams meeting or answering a question from SharePoint and asks the obvious question: do we need to pay for this, or do we already have it?

We sell InSearch, a search tool that answers questions across company apps, so we compete with part of what paid Copilot does and we will say where. Below is what each version does, what Microsoft charges, and how to decide seat by seat.

Is Copilot Chat free?

Yes, for business users. Microsoft says Copilot Chat "is available at no additional cost for all Microsoft Entra account users with an eligible Microsoft 365 subscription." There is no per-seat fee and no separate sign-up. What costs money is agents: Microsoft prices them "on a metered basis", and it says an Azure subscription is required to use them.

So the honest phrasing is "included", not "free". You are already paying for it inside your Microsoft 365 plan, and Microsoft calls it Copilot Chat (Basic) in its own documentation, the "standalone baseline experience included with eligible Microsoft 365 licenses." Two limits come with it. Access to capabilities such as file upload, image generation and the newest models is "standard access", which Microsoft says is subject to service capacity, while licensed users get priority access. And the organizational content it can use is narrow, which is the real difference covered next.

Copilot Chat vs Microsoft 365 Copilot compared

The difference is grounding. Copilot Chat is primarily grounded in the web plus whatever content a user pastes, uploads or opens. A Microsoft 365 Copilot license adds what Microsoft calls Work IQ and semantic indexing across Microsoft 365, so Copilot can find and use mail, chats, meetings and files the user can already open, without being handed them.

The Outlook row deserves a note because it surprises people. Microsoft Learn says Copilot Chat in Outlook gives eligible users "additional organizational grounding" even without a license: questions across emails, calendar items, meetings, chats and "a bounded set of files." Microsoft is equally clear that this is "a limited set of organizational content and reduced graph grounding compared with Microsoft 365 Copilot." If your main ask is "what did the customer say in last week's thread", Outlook may already cover it.

What does Copilot Chat do without a license?

It researches and summarizes the web, writes and rewrites text, analyzes files you upload, creates images and works with agents. It answers about company content only when that content is put in front of it, through a paste, an upload, a referenced file or a supported app such as Outlook.

For a lot of roles that is enough. A marketer drafting copy, a manager rewriting a policy, an analyst asking for a formula: none of them need Copilot to search the company. They need a capable model inside a tenant with enterprise data protection, and Copilot Chat gives them that at no extra cost. Microsoft's documentation says Copilot Chat uses a real-time router that picks a faster or a deeper reasoning model depending on the prompt.

Where it falls short is the question that starts with "where is" or "what did we decide." Without a license, Microsoft Learn states that Copilot Chat "doesn't provide the broad Microsoft 365 organizational grounding" of the licensed product. A user who does not know which document holds the answer cannot upload it.

What do you get when you pay for Microsoft 365 Copilot?

Copilot reads across your Microsoft 365 content without being handed it, works inside Teams, Outlook, Word, PowerPoint and Excel with priority access, includes the Researcher and Analyst agents, and lets users build agents with Agent Builder and Copilot Studio. The Copilot Business card also lists adoption analytics and model choice.

The in-app work is where the license earns its money: a Teams meeting summary with action items, a first draft in Word built from three source files, a PowerPoint built from a document, a pivot in Excel described in plain English. Nothing outside Microsoft does those things as well inside Office, and if your people live in those apps all day, the seat usually pays for itself in saved hours.

How much does Microsoft 365 Copilot cost for business?

Under 300 users, Copilot Business is $18 a user a month paid yearly until December 31, 2026, then $21 at renewal, since Microsoft states the promotion applies to the first year only. Above 300 users, the enterprise add-on is $30 a user a month paid yearly. Both sit on top of a Microsoft 365 plan you also pay for.

Two things in that table are easy to miss. The bundles are cheaper than the add-on: Business Standard is $14.00 on its own, so Standard plus the discounted add-on is $32.00, against $23.50 for the bundle. And the $18.90 and $25.20 monthly figures are two different products, an annual commitment billed in monthly installments and a true month-to-month subscription. We lay out every Copilot Business price, the 300 user line and the seat math at 10 to 300 users on our Microsoft 365 Copilot Business pricing page. For the enterprise ladder, E3, E5 and E7 included, see Microsoft 365 Copilot pricing.

Copilot Chat vs Copilot Business for a 50 person company

License the people who live in Office and leave the rest on Copilot Chat. Microsoft sells Copilot per user, so a 50 person company does not have to buy 50 seats. Fifteen Copilot Business seats cost $3,240 a year at the $18 promotion and $3,780 at $21, while 50 seats cost $10,800 and $12,600.

A practical way to pick the fifteen is to look at who spends the most hours in Teams meetings, long Word documents and Excel models, because that is where the in-app features return time. Run a month on the one month trial (Microsoft requires a card and the trial converts to paid unless you cancel), and watch usage in the adoption analytics before you add seats. If you are starting new Microsoft 365 seats anyway, price the bundles first. If your headcount is heading past 300, read what Microsoft 365 Copilot costs for 300 users before you commit, since the line changes the price per seat.

One small operational note for the rollout: Copilot will draft a lot more outbound email, and those drafts still go out under whatever signature each person set up. Companies that care how that looks usually standardize it with email signature software that sets one template for the whole company before the volume goes up.

What about agents in Copilot Chat?

Users without a license can use agents in Copilot Chat, including custom agents your organization builds, but Microsoft bills them on a metered basis and requires an Azure subscription. That makes agents the one part of Copilot Chat with a variable cost.

An agent that answers HR questions from a SharePoint site can look like a way to get organizational grounding without licenses, and for a narrow, well-defined set of documents it can be. The trade is predictability. A license is a fixed seat price; metered agents are a usage bill that grows with adoption. We cover how Microsoft meters that usage, packs against pay-as-you-go, on Copilot Studio pricing.

Which one should you buy?

Keep Copilot Chat for everyone, since it is already paid for. Buy Microsoft 365 Copilot for people whose work happens inside Word, Excel, PowerPoint, Outlook and Teams. If the bigger problem is finding answers spread across Slack, Google Drive, Notion, Confluence and SharePoint, neither version solves it fully, and a cross-app search tool is the better buy.

That last case is common at companies under 300 people. Email and files are in Microsoft 365, engineering is in Jira and Confluence, a team or two works in Google Docs, and decisions happen in Slack threads. Paid Copilot sees the Microsoft part through Microsoft Graph, and non-Microsoft content only reaches it through connectors an admin configures. The answer to "why did we change the refund policy" is often in the part it cannot see.

InSearch connects SharePoint, Google Drive, Gmail, Slack, Notion, Confluence, Jira and Salesforce read-only, answers in plain English with citations to the exact source, and checks every answer against what the person asking is allowed to open. It costs $20, $32 or $49 per user per month billed annually, starts at three seats and is bought by card. Plenty of teams run it next to Copilot: Copilot for writing inside Office, InSearch for finding things across everything. If you are weighing other assistants as well, our Microsoft Copilot alternatives page compares ten of them on price and reach.