1. Introduction #
Most knowledge work still runs on a loop that looks like this:
You need last quarter's numbers, so you search SharePoint. You find the deck, open it, copy a table into Excel, reformat it, write a summary in Word, then paste that into an email. The thinking took ten minutes. The mechanics took an hour.
Microsoft Copilot is built for that second hour. Rather than living in a separate browser tab, it appears inside the tools already open: Word, Excel, PowerPoint, Teams, Outlook, Windows and Edge.
That is the practical difference. Most AI assistants help you search and generate. Copilot is designed to help you work — inside the document, with access to the files and emails you already have permission to see.
Whether that is worth paying for depends on where your work actually lives. This guide explains what Copilot is, how it works, what it costs, where it fails, and who it genuinely suits. No technical background assumed.
If you only read two sections, read Section 3 and Section 11. The naming and the licensing cause more confusion than the technology does.
2. Quick Answer #
What is Microsoft Copilot? Microsoft Copilot is Microsoft's AI assistant, built into Microsoft products including Word, Excel, PowerPoint, Outlook, Teams, Windows and Edge. It uses large language models — AI systems trained on vast amounts of text — and, on paid business plans, connects to your organisation's own emails, files and meetings. "Copilot" is a family of products rather than a single one, ranging from a free web chat to a paid enterprise assistant.
3. What Is Microsoft Copilot? #
Microsoft describes Copilot as an AI companion embedded throughout its products. That phrasing is doing real work: Copilot is not one app you visit, it is a capability that shows up in many places.
The naming causes most of the confusion. Five terms get used interchangeably and mean different things:
| Term | What it actually is | Who it is for |
|---|---|---|
| Microsoft Copilot | The umbrella brand, and the free consumer chat assistant at copilot.microsoft.com | Anyone |
| Microsoft 365 Copilot | The paid assistant inside Word, Excel, PowerPoint, Outlook and Teams, connected to your organisation's data | Licensed business users |
| Microsoft 365 Copilot Chat | A secure, web-grounded chat included at no extra cost with eligible Microsoft 365 subscriptions. It does not read your internal files by default | Business users without a full licence |
| Copilot Studio | A tool for building custom AI agents | IT teams, developers, technical staff |
| Copilot agents | Task-specific AI assistants — some pre-built by Microsoft, some built by your organisation | Business users |
The one distinction to remember: Copilot Chat is free with most business Microsoft 365 plans but is grounded in the web. Microsoft 365 Copilot is paid and is grounded in your work data.
"We tried Copilot and it didn't know anything about our company." Nearly always, this means the person used Copilot Chat, not a licensed Microsoft 365 Copilot seat. Check which one your team actually has before drawing conclusions about the product.
4. Why Microsoft Calls It "Copilot" #
The name is a deliberate metaphor, and an unusually honest one.
In aviation, the pilot has command. The copilot assists, monitors, flags problems and shares the workload — but the pilot signs for the aircraft and carries the responsibility.
Microsoft chose that framing rather than "autopilot" or "AI agent," and the distinction matters practically. Copilot drafts the email; you decide whether to send it. Copilot writes the formula; you check whether the result is right. Copilot summarises the meeting; you confirm it captured the decision correctly.
It sets the correct expectation. A tool positioned as a copilot is telling you, in its own branding, that a human is expected to stay in the loop. Anyone who treats it as an autopilot will eventually send a confident, well-formatted, wrong document to a client.
5. Who Created Microsoft Copilot? #
Microsoft Copilot is built by Microsoft, drawing on three things: its long partnership with OpenAI, its own Azure AI cloud infrastructure, and its existing Microsoft 365 platform.
Microsoft invested in OpenAI beginning in 2019 and became its major cloud partner. That relationship is why the earliest Copilot products ran on OpenAI's GPT models, delivered through Microsoft's Azure infrastructure rather than OpenAI's own service.
A short timeline:
- Feb 2023: Microsoft launches Bing Chat, an AI chat built into Bing search — the direct ancestor of today's Copilot.
- Mar 2023: Microsoft 365 Copilot announced for Word, Excel, PowerPoint, Outlook and Teams.
- Nov 2023: Microsoft 365 Copilot becomes generally available to enterprise customers.
- 2024: Bing Chat is rebranded Copilot; consumer and business tiers separate; enterprise data protection extended more widely.
- 2025: Focus shifts to agents — task-specific assistants — and to Copilot Studio for building them.
- 2026: Copilot repositioned around Work IQ, Microsoft's name for the layer that gives Copilot an understanding of your work context, plus pre-built agents such as Researcher, Analyst and Facilitator.
Current direction: away from "chatbot in the corner of Word" and towards agents that complete multi-step tasks. Whether that materialises as promised is a fair open question — but it is clearly where the product is heading.
6. Is Microsoft Copilot an AI Model? #
No. This trips up almost everyone, and the distinction is worth thirty seconds.
| Layer | What it means | Example |
|---|---|---|
| Company | The organisation selling the product | Microsoft |
| AI model | The system that actually generates text | OpenAI's GPT models |
| Infrastructure | The cloud the model runs on | Azure AI |
| Application | The product you open | Word, Teams, the Copilot app |
| Assistant | The experience layered across those apps | Microsoft Copilot |
Copilot is the assistant and orchestration layer — not a model. When you type a request, something Microsoft calls the orchestrator works out what you are asking, gathers relevant context, chooses which model to send it to, applies safety checks and returns the answer.
Microsoft's current business pricing pages list access to the latest OpenAI GPT-5 series models, with model choice available on paid plans — meaning Copilot may use more than one model, and administrators or users can influence which. Microsoft also develops its own models, and the pages describe "reasoning AI" for research and data analysis.
Stop comparing AI assistants on model quality. When two products can run the same underlying model, the only differences that survive are connectivity, governance and friction. Compare those instead.
7. Microsoft Copilot vs ChatGPT vs Gemini vs Claude vs Perplexity #
These are positioning statements about default workflow, not performance rankings. Capabilities overlap heavily and change monthly.
| Assistant | Default workflow | Connected to | Best suited for |
|---|---|---|---|
| Microsoft Copilot | Works inside document, spreadsheet, inbox or meeting | Your M365 data (paid) | Organisations on M365 |
| ChatGPT | You bring a task to a general-purpose assistant | Its own ecosystem; web | Broad everyday work |
| Google Gemini | Works inside Gmail, Docs, Sheets and Drive | Google Workspace data | Teams on Google |
| Claude | Long-form writing, document analysis, reasoning | Uploaded files; web | Document-heavy writing |
| Perplexity | Searches live web and cites sources on every answer | Open web + databases | Checkable research |
The honest summary: if your working day runs through Outlook, Teams, Word and Excel, Copilot has a structural advantage that has nothing to do with model quality — the assistant can already see the file. If your work lives elsewhere, that advantage disappears entirely.
8. How Microsoft Copilot Works #
- Your question: Typed in plain language, usually inside the app you are working in.
- Context: Copilot can see what you have open — the paragraph you selected, the thread you are reading, the meeting you are in.
- Microsoft Graph: On licensed plans, Copilot retrieves relevant material from your organisation's emails, files, chats and calendar.
- Permissions: The critical safeguard. Copilot can only surface content you already have permission to open. It does not grant new access.
- Model: A large language model generates the response from your prompt plus the retrieved context.
- Reasoning and safety checks: Responsible-AI safety checks applied before a response is returned.
- Response, then human review: Your job, and not optional.
9. Microsoft Graph Explained #
Microsoft Graph is the connection between Copilot and your organisation's own information. Every business question a beginner has about Copilot — can it read my email, is it safe, why is it expensive — comes back to this.
In plain English: Graph is the interface through which Microsoft 365 stores and exposes your work data: Email, Calendar, Documents, Meetings, Conversations, and People metadata.
Audit your SharePoint and OneDrive sharing settings before you license Copilot, not after. Copilot does not create oversharing, but it turns dormant oversharing (like an old public folder of salary data) into something any employee can surface with a plain-English question.
A 2026 naming update: Microsoft now describes the broader layer as Work IQ, which includes Microsoft 365 content and metadata, line-of-business data brought in through connectors, a semantic index built over both, and Copilot Memory.
10. Key Features #
📝 Word
Drafts, rewrites, shortens, changes tone, summarises 40-page reports into 2 pages.
📊 Excel
Explains data, suggests formulas, identifies trends, creates charts.
📊 PowerPoint
Builds decks from Word documents or prompts, reformats slides, writes speaker notes.
📧 Outlook & Teams
Summarises long email threads & meeting transcripts, action items, triages inbox.
Note on code: Microsoft also sells GitHub Copilot, a separate product for software developers working in code editors. It is licensed and priced independently.
11. Plans and Pricing #
Prices verified on 31 July 2026 (US list prices):
| Plan Tier | Price | Details |
|---|---|---|
| Microsoft 365 Copilot Chat | Included | Included with eligible M365 subscriptions (web-grounded) |
| Copilot Business Add-on | $18.00 - $21.00 / user / mo | $18 promo annual / $21 standard annual / $25.20 monthly |
| Business Standard with Copilot | $23.50 / user / mo | Bundled base plan + Copilot add-on |
| Microsoft 365 Copilot Enterprise | $30.00 / user / mo | Paid yearly, full Graph access across enterprise |
1. Copilot is an add-on, requiring an existing M365 licence.
2. There is no free trial of Microsoft 365 Copilot.
3. Annual commitment is standard (monthly costs ~20% more).
12. Privacy and Business Data #
Under Enterprise Data Protection, Microsoft acts as a data processor. Prompts and responses on work accounts are not used to train foundation models and stay within the M365 service boundary. The free consumer version does NOT carry these protections!
13. Business Use Cases #
14. How to Use Microsoft Copilot Effectively #
Specify Role • Task • Context • Format and point directly at the file or thread.
"Summarise yesterday's supplier review meeting for our operations manager, who wasn't there. Cover only decisions made and actions assigned, with owners and dates. Flag anything left unresolved. Bullet points, under 200 words, no background."
15. Source Verification #
1. Open the source document to verify citations.
2. Verify every number and financial metric.
3. Test every Excel formula generated.
4. Confirm meeting summaries with an attendee.
16. Limitations #
Key limitations include hallucinations, permission gaps, outdated documents, spreadsheet formula errors, reasoning limits, enterprise setup complexity, and ecosystem dependence on Microsoft 365.
17. Copilot vs Other AI Assistants #
Different tools optimize for different bottlenecks. Copilot's bottleneck is friction between AI and the work already open in Microsoft 365.
18. Locatria Recommendation #
Pilot Copilot with the five people who send the most email, not the five most excited about AI. Heavy users will tell you whether the time savings are real and repeatable!
19. Frequently Asked Questions #
Microsoft's AI assistant, built into products including Word, Excel, PowerPoint, Outlook, Teams, Windows and Edge. On paid business plans it connects to your organisation's own emails, files and meetings.
There is a free consumer version at copilot.microsoft.com. Microsoft 365 Copilot Chat is included at no extra cost with eligible Microsoft 365 business subscriptions. The full Microsoft 365 Copilot is a paid add-on.
No. They are different products from different companies. Copilot may run OpenAI models, but it is Microsoft's product and is connected to your Microsoft 365 data on paid plans.
Yes, in part. Microsoft's current business pricing pages list access to the latest OpenAI GPT-5 series models, with model choice available on paid plans. Microsoft also develops its own models.
On a licensed Microsoft 365 Copilot plan, yes — but only emails you can already access. Copilot Chat and the free consumer version cannot.
Licensed Copilot retrieves files through Microsoft Graph, respecting your existing permissions. It cannot open anything you could not open yourself.
For business use with a work account, Microsoft applies Enterprise Data Protection and states that prompts and responses are not used to train foundation models. The free consumer version does not carry those commitments and is not appropriate for confidential work data.
No. It is a layer inside Office apps, not a replacement. You still need a Microsoft 365 licence — Copilot is sold as an add-on.
The layer through which Microsoft 365 stores and exposes your organisation's data — emails, files, calendar, chats and meetings. It is how Copilot answers questions about your own work, and it enforces existing permissions.
Yes, and it can explain data and suggest analysis. Verify the output — formula and calculation errors are among the most common and most costly Copilot mistakes.
Yes. It can build a deck from a document or prompt, reformat slides and write speaker notes. Expect to edit; treat the result as a first draft.
Yes, on licensed plans — transcripts, summaries and action items, and you can ask questions about what was discussed. Confirm anything decision-critical with someone who attended.
It depends on how much of your work happens inside Microsoft 365. If most of it does, the daily time savings add up. If your team works mainly elsewhere, a general-purpose assistant is usually better value.
Only if their organisation already runs on Microsoft 365. Otherwise a general-purpose assistant is an easier place to learn what AI is useful for, because you are not also learning enterprise licensing.
20. Key Takeaways #
- Microsoft Copilot is a family of products, not one tool — from a free consumer chat to a paid enterprise assistant.
- The most important distinction is Copilot Chat versus Microsoft 365 Copilot. Chat is included with eligible plans and grounded in the web; the licensed version is grounded in your work data.
- Copilot is an assistant layer, not an AI model. It orchestrates models — including OpenAI's — rather than being one.
- Microsoft Graph is the mechanism that lets Copilot answer questions about your own emails, files and meetings.
- Permissions are the security boundary. Copilot only surfaces what you can already access — and makes existing oversharing visible.
- Enterprise Data Protection is the key business commitment. Microsoft states prompts and responses are not used to train foundation models, and that they stay within the Microsoft 365 service boundary.
- The free consumer version is not appropriate for confidential work data. Different product, different commitments.
- Copilot is an add-on, requiring a qualifying Microsoft 365 licence, and there is no trial of the full product.
- It can be wrong in all the usual ways — hallucinations, outdated documents, spreadsheet errors — and being connected to your data makes wrong answers look more authoritative.
- Verify the source, the numbers, the formulas and the meeting summaries. Especially the formulas.
- The value is tied to the ecosystem. Outside Microsoft 365, most of the advantage disappears.
- Choose based on workflow, not hype. AI augments human judgement; it does not replace it.
Continue Learning with Locatria #
This article is a companion guide in the Locatria AI Basics Knowledge Hub.