What Is Microsoft Copilot? The AI Assistant Explained (2026)

By the Chatgbot Team · Published August 4, 2026

Microsoft Copilot is Microsoft's AI assistant, built largely on OpenAI models and woven directly into Windows, Edge, Bing, and the Microsoft 365 apps like Word, Excel, Outlook, and Teams. It can write, summarize, analyze your files, answer questions from the web, and generate images, all without leaving the tools you already use.

If you have opened Windows or Office recently, you have probably seen the Copilot button. It is Microsoft's answer to ChatGPT, and it shows up in a lot of places. That can make it confusing, because "Copilot" is really a family of products rather than a single app.

This guide explains what Copilot is, the different versions in plain language, what it does well, where it falls short, and how it stacks up against ChatGPT. If you want a broader primer first, see our overview of what AI is.

What is Microsoft Copilot?

Microsoft Copilot is a chatbot and productivity assistant made by Microsoft. You type a request in plain language, and it responds with text, a summary, a chart, an image, or an answer pulled from the web.

The important detail is where it lives. Instead of being one website you visit, Copilot is embedded across Microsoft's products. There is a standalone Copilot app and website, but the same assistant also appears inside Windows 11, the Edge browser, Bing search, and the Microsoft 365 apps. That deep integration is Copilot's biggest selling point.

Under the hood, Copilot runs largely on OpenAI's GPT models, the same technology family behind ChatGPT, combined with Microsoft's own systems and your work data when you use the business version. To understand how these underlying systems work, our guide to AI models explained is a good companion.

The different Copilots, explained simply

The name "Copilot" gets attached to several products. Here are the main ones without the jargon.

• Free Copilot: The version anyone can use in Windows, Edge, Bing, or the Copilot app. Good for chatting, web answers, writing help, and basic image generation.
• Copilot Pro: A paid personal subscription. It adds priority access to the newest models, faster performance during busy times, and Copilot features inside the consumer Word, Excel, PowerPoint, and Outlook apps.
• Microsoft 365 Copilot: The version built for work. It plugs into your company's files, emails, and chats so it can draft, summarize, and analyze using your actual documents. It is sold to businesses per user.
• GitHub Copilot: A separate product aimed at programmers. It suggests and writes code directly inside coding tools. If coding is your focus, see our roundup of the best AI for coding.

The quick way to keep them straight: free Copilot is for everyday questions, Copilot Pro is a personal upgrade, Microsoft 365 Copilot is for teams and work data, and GitHub Copilot is for writing code.

What Microsoft Copilot can do

Copilot handles the tasks you would expect from a modern assistant, plus a few that come from its Office integration.

• Write and rewrite: Draft emails, reports, posts, and summaries, then adjust the tone or length.
• Summarize: Condense long documents, email threads, or a Teams meeting into a short recap with action items.
• Analyze in Office: Turn a plain-language request into an Excel formula, spot trends in a spreadsheet, or build a first-draft PowerPoint from a Word file.
• Answer from the web: Pull current information through Bing and cite sources, which the offline chatbots cannot always do.
• Generate images: Create pictures from a text description using Microsoft's image tools.

The pattern is clear. The more you live inside Windows and Microsoft 365, the more Copilot can do for you, because it can reach into the files and apps you already work in.

Free vs paid: which Copilot do you need?

Most people can start free. The free tier covers chatting, web-connected answers, writing help, and image generation, which is plenty for casual use.

You step up to a paid plan when you want Copilot working inside your documents. Copilot Pro brings the assistant into the personal Office apps and gives priority access when servers are busy. Microsoft 365 Copilot is the choice for organizations that want the assistant grounded in company data across Word, Excel, Outlook, and Teams.

Strengths and limits

Copilot's clearest strength is integration. If your day runs on Windows and Microsoft 365, having an assistant one click away inside Word, Excel, and Outlook is genuinely useful. Its web connection through Bing also means it can answer questions about current events and cite where the answer came from.

The limits are worth knowing too. Like any AI assistant, Copilot can produce confident answers that are wrong, so you still need to check important facts and numbers. The most powerful features are locked behind paid plans, and the business version only shines once it is connected to your company data. Outside the Microsoft world, its advantage shrinks.

Microsoft Copilot vs ChatGPT

Because Copilot and ChatGPT both use OpenAI models, their raw chat quality is similar. The real difference is where they fit.

ChatGPT is a flexible standalone assistant with a large ecosystem of custom tools and a familiar app. Copilot's edge is being built into software you may already pay for, so it can act on your actual documents and emails without copying and pasting. For a full breakdown, read our detailed comparison of Copilot vs ChatGPT.

Put simply: pick Copilot if you want AI inside Office and Windows, and pick ChatGPT if you want a versatile assistant that lives on its own.

Who is Microsoft Copilot for?

Copilot fits best if you already spend your day in Microsoft tools. It suits office workers who write and analyze in Word and Excel, teams that meet in Teams and want automatic recaps, and Windows users who want a built-in assistant. Developers have their own version in GitHub Copilot.

If you do not use Microsoft 365 much, a standalone assistant may serve you better, since Copilot's main advantage is that tight integration.

Using Copilot-style models alongside others in one app

Copilot ties you to Microsoft's ecosystem and its chosen models. That is convenient, but no single assistant is best at everything. One model may write more naturally, another may reason better through a tricky problem, and another may be faster or cheaper.

This is where using several AI models in one place helps. Chatgbot gives you access to leading models, including OpenAI GPT and Claude, under one subscription, so you can ask the same question to different models and keep the answer you like best. Instead of committing to one assistant, you compare them side by side and switch mid-conversation.

Frequently asked questions

Is Microsoft Copilot free?

Yes, there is a free version available in Windows, Edge, Bing, and the Copilot app. It covers chatting, web answers, and basic image generation. Paid plans like Copilot Pro and Microsoft 365 Copilot add features inside the Office apps and access to company data.

Does Microsoft Copilot use ChatGPT?

Copilot is built largely on the same OpenAI GPT models that power ChatGPT, combined with Microsoft's own technology. So the underlying intelligence is closely related, but the two products are packaged and integrated very differently.

What is the difference between Copilot and Copilot Pro?

Free Copilot handles general chat, web answers, and images. Copilot Pro is a paid personal upgrade that adds the assistant inside the consumer Word, Excel, PowerPoint, and Outlook apps, plus priority access to newer models during busy periods.

Is Microsoft Copilot good for work?

It can be, especially with Microsoft 365 Copilot, which connects to your company files, emails, and meetings to draft and summarize using real data. As with any AI, you should still review its output for accuracy before relying on it.

The takeaway

Microsoft Copilot is a capable AI assistant, and its strength is being everywhere you already work in Windows and Office. But you do not have to lock yourself into one company's model. With Chatgbot, you can use several top AI models, including GPT and Claude, in one app for one price, and pick the best answer every time.