Short answer: Microsoft Copilot is two different things wearing one name, and whether it is worth it depends on which you mean. The free Copilot in Windows is a genuinely useful AI assistant baked into the OS and the web, powered by frontier models, and there is no reason not to use it. Microsoft 365 Copilot, the paid version at around $30 / £25 per user per month that lives inside Word, Excel, Outlook and Teams, is powerful but pricey — and its value swings hard on your workflow. Buy the paid version if your team lives in Office and does heavy document, email and meeting work; skip it if your usage is light.
This review is expert analysis built from Microsoft’s published documentation, current pricing and aggregated user feedback through mid-2026, not a private benchmark or a claim of hands-on lab testing. Note this is Microsoft’s productivity assistant — not GitHub Copilot, the coding tool we cover in our GitHub Copilot Review 2026: Still the Default?.
Microsoft Copilot at a glance
Pros:
- Free Copilot in Windows is capable and always available
- Deep integration across Word, Excel, Outlook and Teams
- Meeting summaries and email drafting are real time-savers
- Backed by frontier-grade models
Cons:
- Microsoft 365 Copilot is expensive at around $30 / £25 per user
- Results vary by app — Excel is weaker than Word or Outlook
- Value depends heavily on how much Office you actually use
Copilot in Windows: the free assistant
Copilot in Windows is the version most people will meet first. It sits in the taskbar and the web, offering a chat assistant that can answer questions, draft text, summarise content, generate images and help with everyday tasks — all free, powered by strong underlying models. As a general-purpose assistant it is comparable to the other big chatbots, and being built into the OS makes it convenient.
For most home users, this free tier is the whole story, and it is a good one. It handles the same broad requests you would take to any leading assistant, with the bonus of OS integration. If you are simply weighing which chatbot to rely on day to day, our Best AI Chatbots 2026: ChatGPT vs Claude vs Gemini & More guide compares Copilot against the field, and our ChatGPT Review 2026: Still the Best AI Assistant? covers the OpenAI models that underpin much of Microsoft’s Copilot experience.
The limits are the same as any chatbot: it can be confidently wrong, so verify anything important. But at zero cost with no setup, it is an easy recommendation.
Microsoft 365 Copilot: AI inside Office
The paid product is the interesting, contentious one. Microsoft 365 Copilot at around $30 / £25 per user per month embeds AI directly into the Office apps and, crucially, connects it to your own work — your documents, emails, calendar and chats — through Microsoft Graph. That grounding in your actual data is what separates it from a generic chatbot, and it is the source of both its power and its inconsistency.
Word
Word is where Copilot shines most. It can draft documents from a prompt, rewrite and adjust tone, summarise long files, and pull in content from your other documents. For anyone who writes reports, proposals or first drafts regularly, it is a legitimate time-saver, turning a blank page into a solid starting point you then refine.
Excel
Excel is the weakest link, and honesty matters here. Copilot can help analyse data, suggest formulas, generate charts and surface trends in plain English, which is genuinely useful for people who are not spreadsheet experts. But based on aggregated user feedback, results are less reliable than in Word or Outlook — it can misread structure, stumble on complex or messy data, and needs careful checking. It lowers the barrier to analysis rather than replacing an expert.
Outlook
Outlook is one of the strongest use cases. Copilot drafts emails, summarises long threads so you can catch up quickly, and helps triage a busy inbox. For heavy email users, thread summaries alone can save real time each day, and the drafting is solid for routine correspondence.
Teams
In Teams, Copilot’s meeting features are a highlight. It transcribes and summarises meetings, lists action items and decisions, and lets you ask what was said if you joined late or missed part of a call. For meeting-heavy organisations, this is arguably the single most valuable capability in the whole suite — the kind of thing that quietly justifies the subscription for the right team.
Pricing and value
At around $30 / £25 per user per month, Microsoft 365 Copilot is a significant addition on top of an existing Microsoft 365 subscription — it does not replace it. For a team of any size, that adds up quickly, so the value question is really about usage.
It is worth it if your people spend their days in Office: writing documents, managing heavy email, and attending lots of meetings. In that setting, the time saved on drafting, summarising and catching up can outweigh the per-seat cost. It is hard to justify if usage is light, if your team lives more in other tools, or if the main need is a general chatbot — which the free Copilot in Windows already covers.
The pragmatic approach for organisations is to trial it with the heaviest Office users first, measure the time saved, and expand only where the numbers work. Blanket-deploying $30 seats to everyone is where buyers most often overpay.
How it compares
As a general assistant, the free Copilot in Windows competes with the leading chatbots and is a fine default, especially on a Windows PC. Our Best AI Chatbots 2026: ChatGPT vs Claude vs Gemini & More roundup places it against the alternatives.
As an Office productivity layer, Microsoft 365 Copilot has no true equivalent — its edge is direct integration with your own documents, email and meetings, which standalone chatbots cannot match. The competition is really “do it manually” or “paste into a chatbot,” and for heavy Office users, the integrated version wins on convenience despite the price.
Verdict
Microsoft Copilot splits neatly. The free Copilot in Windows is an easy yes — a capable, always-available assistant with no cost or setup, and a strong reason to use it if you are on Windows. Microsoft 365 Copilot at around $30 / £25 per user is a genuine productivity tool whose worth depends entirely on how much your team lives in Word, Outlook and Teams, with Excel the weakest and meeting summaries the standout.
Buy the paid tier for document-, email- and meeting-heavy teams, and trial it with your busiest Office users before rolling it out widely. If your usage is light or you mainly want a chatbot, the free version is all you need.
FAQ
Is Microsoft Copilot worth the $30 per user price?
Microsoft 365 Copilot is worth it for teams that live in Office — heavy document writing, busy inboxes and lots of meetings — where time saved on drafting and summarising can outweigh the cost. It is hard to justify for light users or those who mainly want a general chatbot, since the free Copilot in Windows already covers that. Trial it with your heaviest Office users and measure the results before a wide rollout.
What is the difference between Copilot in Windows and Microsoft 365 Copilot?
Copilot in Windows is the free assistant built into the OS and the web, handling general questions, drafting and image generation like any chatbot. Microsoft 365 Copilot is the paid version at around $30 / £25 per user per month that lives inside Word, Excel, Outlook and Teams and connects to your own documents, email and meetings. The paid tier’s grounding in your actual work is what sets it apart from the free assistant.
Is Copilot in Windows free?
Yes. Copilot in Windows is available at no cost, built into Windows and the web, and powered by strong underlying models. It can answer questions, draft and summarise text, and generate images, making it a capable general assistant for most home users. The paid Microsoft 365 Copilot is a separate product that adds AI inside the Office apps for around $30 / £25 per user per month.
How good is Copilot in Excel?
Copilot in Excel is useful but the least reliable of the Office apps. It can analyse data, suggest formulas, build charts and surface trends from plain-English prompts, which helps non-experts, but based on user feedback it can misread spreadsheet structure and struggle with complex or messy data. Treat it as an assistant that lowers the barrier to analysis and always check its output, rather than a replacement for spreadsheet expertise.
Does Microsoft 365 Copilot use my company data safely?
Microsoft 365 Copilot connects to your organisation’s documents, emails and meetings through Microsoft Graph and is designed to respect existing permissions, so it should only surface data a user already has access to. Microsoft states it does not use your business data to train the foundation models. As with any enterprise AI deployment, review Microsoft’s current data-handling and compliance documentation against your own requirements before rolling it out.
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