What Is Agentic AI? Agent Mode vs. Copilot Chat
For the past few years, most people have used AI the same way: ask a question, get an answer, copy what's useful. That's changing. A new generation of AI tools doesn't just answer your question. It takes on the task, plans the steps, does the work inside your files, checks the result, and asks you when it needs a decision.
This shift is called agentic AI, and Microsoft has built it directly into the apps your team already uses every day. In Microsoft 365 Copilot, it shows up as Agent Mode in Word, Excel, and PowerPoint.
If your team already uses Copilot Chat, you might be wondering what's actually different, and whether it matters. It does. In this post we'll explain what agentic AI is in plain English, how Agent Mode differs from Copilot Chat, and walk through real business scenarios with step-by-step prompts you can try today.
What is agentic AI?
Agentic AI is AI that works toward a goal instead of just answering a prompt. You describe the outcome you want, and the AI figures out the steps, carries them out, and checks its own work along the way.
Think of the difference between asking a coworker a question and handing a coworker a project.
- A chatbot is like asking a question. "What formula calculates year-over-year growth?" You get an answer, then you go do the work yourself.
- An agent is like delegating a task. "Add a year-over-year growth column to this sales report, flag any region that dropped more than 10%, and chart the results." The agent does the work and shows you what it did.
Most AI agents follow the same basic loop:
- Understand the goal. The agent reads your request and the context around it, such as the open file, your data, or your template.
- Make a plan. It breaks the goal into smaller steps.
- Take action. It performs those steps directly: writing, editing, building formulas, creating charts, or restructuring content.
- Check the result. It reviews what it produced and fixes problems it finds.
- Check in with you. It shows its changes, asks clarifying questions when something is unclear, and lets you keep, refine, or undo the work.
The key word is action. Traditional AI assistants suggest. Agentic AI does. That's a big productivity gain, but it also means the human's job changes from doing every step to directing and reviewing the work.
What is Copilot Chat?
Copilot Chat is Microsoft's conversational AI assistant for work. You type a question or request, and Copilot replies in the chat window. It's included with most Microsoft 365 business subscriptions, and you'll find it in the Microsoft 365 Copilot app, in Teams, in Edge, and in a side pane inside apps like Outlook, Word, Excel, and PowerPoint.
Copilot Chat is excellent at:
- Answering questions and explaining concepts, from "What's the difference between XLOOKUP and INDEX/MATCH?" to "Summarize the key points of this contract."
- Drafting text you'll paste somewhere else, such as emails, talking points, job descriptions, or social posts.
- Brainstorming ideas, outlines, agendas, and options.
- Summarizing and analyzing content you upload or paste in.
- Research using web-grounded answers. With a full Microsoft 365 Copilot license, it can also reason over your work data, including email, meetings, chats, and files.
The defining trait of Copilot Chat is that the output lives in the conversation. Copilot gives you an answer, a draft, or a suggestion. Then you decide what to do with it: copy it, paste it, edit it, apply it. You remain the one doing the work in your document. That's not a weakness. For quick questions and first drafts, a conversation is exactly the right tool.
What is Agent Mode in Copilot?
Agent Mode is Copilot's agentic capability inside Word, Excel, and PowerPoint. Instead of answering in a chat window, Copilot takes multi-step actions directly in your document, workbook, or presentation while you watch. Microsoft made it generally available on April 22, 2026 and made it the default Copilot experience for Microsoft 365 Copilot and Microsoft 365 Premium subscribers.
A quick note on the name. You'll still hear "Agent Mode" everywhere, including from Microsoft's own executives. In the apps themselves, Microsoft now labels the capability Edit with Copilot. According to Microsoft Support, it was previously marketed as Agent Mode and is now part of the regular Copilot experience. Same feature, new label. In this post we use the two names interchangeably.
What it does in each app
- Word: Drafts full documents from a brief, rewrites and restructures existing content, adjusts tone for a specific audience, and applies consistent formatting.
- Excel: Explores your data, builds formulas, tables, PivotTables, and charts, adds calculated columns, and explains its analysis, all directly in the workbook.
- PowerPoint: Builds new decks or updates existing ones with fresh talking points and data, while respecting your company's template.
How it works
- Open a file in Word, Excel, or PowerPoint and select Copilot on the Home tab.
- In the Copilot pane, choose Tools > Edit with Copilot (in many tenants, editing is already on by default).
- Describe the outcome you want, not just the first step.
- Copilot lays out a plan, makes the changes in your file, and explains what it did. It may ask a clarifying question if your request is ambiguous.
- Review the result. Keep it, ask for adjustments in plain language, or undo.
One important caution: Agent Mode edits your actual file, and in files saved to OneDrive or SharePoint those changes save automatically. Microsoft recommends working on a copy of any critical or sensitive file, and reminds users they can undo or restore prior versions.
Who has it? Full Agent Mode requires a Microsoft 365 Copilot license for business users, or a Microsoft 365 Personal, Family, or Premium subscription for individuals. If you only have the Copilot Chat included with your business plan, check with your IT team about what's enabled in your organization.
Agent Mode vs. Copilot Chat: what's the difference?
The simplest way to remember it: Copilot Chat talks about your work. Agent Mode does your work.
| Copilot Chat | Agent Mode (Edit with Copilot) | |
|---|---|---|
| Role | Advisor and drafter | Doer and collaborator |
| Where output goes | The chat pane; you copy or apply it | Directly into your document, workbook, or deck |
| Type of task | Single questions and single drafts | Multi-step tasks with a clear outcome |
| How it works | Answers your prompt | Plans, acts, checks its work, then reports back |
| Your role | You do the work in the file | You direct and review the work |
| Best prompt style | A question or a specific request | A goal, plus context and success criteria |
| Risk to your file | None until you apply something | Edits the live file; review and keep backups |
| Typical license | Included with most Microsoft 365 business plans | Microsoft 365 Copilot (business) or Premium, Personal, or Family (consumer) |
When to use Copilot Chat
- You have a question: "How do I lock the header row in Excel?"
- You want ideas or options before you commit to anything.
- You need text to paste somewhere else, like an email or a Teams post.
- You want a summary of content you're reading, not editing.
When to use Agent Mode
- The task has several steps you'd otherwise do by hand.
- The result belongs inside the file: a restructured report, a finished analysis, an updated deck.
- You can describe what "done" looks like.
- You'd rather review finished work than build it from scratch.
Many people get the best results by using both. Start in Copilot Chat to think through the approach, then switch to Agent Mode to execute it.
Business scenarios: step-by-step prompts you can use today
The scenarios below show how a real business task plays out in Agent Mode. Each one is a sequence of prompts, because agentic work goes best as a short conversation: set the goal, review, then refine. Replace anything in [brackets] with your own details.
Scenario 1: Finance — monthly budget-vs-actual variance report (Excel)
The situation: Your controller exports actuals from the accounting system every month and spends half a day building the same variance analysis.
With Copilot Chat: You'd ask how to calculate variance percentages, then build the formulas, formatting, and chart yourself.
With Agent Mode:
- Set the goal. "This workbook has a Budget sheet and an Actuals sheet for [month]. Create a new sheet called Variance that compares budget to actual by department and GL category. Add columns for dollar variance and percent variance."
- Add the business rules. "Highlight any line where spending is more than 10% over budget in red, and more than 10% under budget in yellow. Add a total row for each department."
- Summarize the story. "Build a clustered bar chart of budget vs. actual by department, and add a short text box above it listing the three largest overages and the likely drivers based on the line items."
- Check the work. "Explain how you calculated percent variance and list any rows where budget was zero or data looked inconsistent."
- Make it repeatable. "Convert the source ranges to Excel tables so next month I can paste in new actuals and the Variance sheet updates."
Review checkpoint: Spot-check three or four variance figures by hand before sharing. Agents are fast, but you own the numbers.
Scenario 2: Sales — refreshing a quarterly business review deck (PowerPoint)
The situation: Your account manager has last quarter's QBR deck for a key client and needs it updated with new results before Thursday's meeting.
With Copilot Chat: You'd get suggested talking points, then edit each slide manually.
With Agent Mode:
- Set the goal. "Update this QBR deck for [client] from Q2 to Q3. Change every date, quarter reference, and heading accordingly."
- Bring in the new data. "Use the figures from [Q3 results file or pasted table] to update the revenue, usage, and support-ticket slides. Update the charts to match."
- Reshape the narrative. "Add a slide after the results summary called 'Wins This Quarter' with three bullet points based on the new data, and a slide called 'Opportunities for Q4' with two recommendations."
- Tighten it. "Cut any slide that repeats information from another slide, keep the deck to 12 slides or fewer, and make sure every slide uses our company template layouts."
- Prepare the presenter. "Add speaker notes to each slide with two or three talking points and one likely client question."
Review checkpoint: Verify every number on the slides against the source data, and read the speaker notes out loud once. Client-facing content always gets a human read.
Scenario 3: HR — turning a policy change into handbook-ready content (Word)
The situation: Leadership approved a new hybrid work policy in a meeting. HR has rough notes and needs a polished handbook section and an employee FAQ.
With Copilot Chat: You'd get a draft in the chat pane to copy into Word, then format and restructure it yourself.
With Agent Mode:
- Set the goal. "Using the meeting notes in this document, write a new employee handbook section titled 'Hybrid Work Policy.' Include purpose, eligibility, in-office expectations, equipment, and how to request an exception."
- Match the house style. "Use the same heading styles, numbering, and formal tone as the existing handbook sections in this document."
- Add the FAQ. "After the policy, add an FAQ with eight questions employees are likely to ask, written in plain, friendly language."
- Flag the gaps. "Insert a comment anywhere the notes don't give enough detail to state the policy clearly, so I can confirm it with leadership."
- Create a manager version. "At the end, add a one-page summary for people managers covering what changes for their teams and how to handle exception requests."
Review checkpoint: Have HR leadership, and legal counsel where appropriate, approve policy language before it's published. The agent drafts; people decide policy.
Scenario 4: Project management — status report from a project tracker (Excel, then Word)
The situation: A project manager tracks tasks in a spreadsheet and writes a weekly status report for stakeholders.
With Copilot Chat: You'd ask for a summary of the tracker and paste the result into an email.
With Agent Mode:
- Clean up the tracker (Excel). "In this task tracker, add a Status column that shows 'Overdue' if the due date has passed and the task isn't complete, 'Due This Week' if it's due in the next seven days, and 'On Track' otherwise."
- Add a dashboard (Excel). "Create a Summary sheet showing task counts by status and by owner, percent complete by workstream, and a chart of overdue tasks by owner."
- Draft the report (Word). Open a new Word document and reference the workbook: "Using [tracker file name], write a one-page weekly status report for [project] with sections for overall status, accomplishments this week, upcoming milestones, risks and issues, and decisions needed."
- Set the tone. "Rewrite the risks section for an executive audience: lead with impact, keep each risk to two sentences, and include the owner and next step."
- Make it skimmable. "Add a red, yellow, or green status indicator at the top with a one-sentence explanation."
Review checkpoint: Confirm the overall status rating yourself. Rating a project's health is a judgment call, and stakeholders expect it to come from you.
Scenario 5: Operations — a standard operating procedure from scattered notes (Word)
The situation: Your operations lead has years of tribal knowledge about the client onboarding process, scattered across emails and notes. New hires keep asking the same questions.
With Copilot Chat: You'd get an outline and some suggested steps to write up yourself.
With Agent Mode:
- Set the goal. "Turn the notes pasted below into a standard operating procedure for onboarding a new client. Include purpose, scope, roles and responsibilities, numbered procedure steps, and required tools. [paste notes]"
- Structure the steps. "Group the procedure into phases (Pre-kickoff, Kickoff, Setup, and First 30 Days) and add the responsible role and expected timeframe to each step."
- Add quality controls. "Add a checklist at the end of each phase that a team member can use to confirm everything was completed."
- Find the holes. "Review the procedure as if you were a new employee. Insert comments where a step is vague, a handoff is unclear, or a decision isn't explained."
- Finish it. "Add a revision history table and a short glossary of internal terms at the end."
Review checkpoint: Walk a new team member through the SOP and fix anything that trips them up. The best test of a procedure is someone who's never done the job.
Tips for getting great results (and staying in control)
Agent Mode rewards a slightly different way of prompting. These habits make the biggest difference.
- Prompt for the outcome, not the next click. "Make column D bold" is a Copilot Chat instruction. "Build me a variance report with the overages flagged" is an Agent Mode instruction.
- Give context and constraints. Tell Copilot who the audience is, what format to follow, what to leave alone, and what "done" looks like. "Keep it to one page" and "don't change the Inputs sheet" save you from surprises.
- Work in rounds. Set the goal, review the first pass, then refine. Three focused prompts beat one giant prompt.
- Ask the agent to explain and check itself. Prompts like "Explain how you calculated this" and "List anything you weren't sure about" turn hidden assumptions into things you can verify.
- Protect important files. Agent Mode edits the live file. Use a copy for critical or sensitive work, and know how to use Undo and Version History before you start.
- Stay the accountable human. Agents can be confidently wrong. Verify numbers, facts, and anything client-facing or policy-related before it leaves your hands.
- Know your organization's rules. Agent Mode follows your Microsoft 365 permissions and your company's data policies. Check with IT about which features are licensed and enabled, and what data is appropriate to use with AI.
Microsoft is also extending agentic features beyond these three apps, including Outlook, so the skills your team builds now will carry forward.
The bottom line
Agentic AI changes the question from "What can AI tell me?" to "What can AI do for me?" Copilot Chat remains the right tool for questions, ideas, and quick drafts. Agent Mode is the right tool when you want finished work inside your Word documents, Excel workbooks, and PowerPoint decks.
The teams that benefit most won't be the ones with the most licenses. They'll be the ones who learn to delegate well: clear goals, good context, smart review habits, and sound judgment about what still needs a human.
Get your team up to speed with SkillForge
SkillForge delivers live, instructor-led Microsoft Copilot training, online or onsite at your location anywhere in North America. Our courses cover Copilot Chat, Copilot in Excel, Copilot in PowerPoint, and practical AI skills for business, using hands-on exercises built around real workplace tasks like the scenarios above.
Explore our Copilot and AI courses or contact us to plan a private session for your team.