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Whyston vs Copilot in PowerPoint: Which AI for Consulting Decks?

Copilot drafts slides inside PowerPoint for Microsoft 365 users. Whyston builds consulting decks from your documents: a storyline, action titles, every number labelled by origin and native PowerPoint.

By Whyston Editorial · Updated 12 October 2026 · 2 min read

Short answer: for client-ready consulting decks, choose Whyston. Copilot is a convenient way to get a first draft inside PowerPoint, but Microsoft does not describe a consulting storyline, action titles or source labels for numbers. Whyston builds the argument and tells you where every number came from.

Disclosure: Whyston publishes this page. Facts about Copilot in PowerPoint come from Copilot in PowerPoint's own website and documentation (linked below), reviewed in August and October 2026.

Side by side

WhystonCopilot in PowerPoint
Built forConsulting-grade decks you can defendFirst drafts and formatting inside PowerPoint
StorylineGoverning thought, SCQA arc and MECE pillars written before any slideGenerates an outline from a prompt; no consulting structure described
Slide titlesAn action title on every slideNot described
NumbersEvery number labelled as documented, derived or an assumption; source line on each slide; Figures and Assumptions pageSource labels for numbers not described
Your sourcesPDF, PPTX, DOCX, XLSX, CSV and Markdown become a citable evidence baseA Word file (under 24 MB)
Consulting chartsNative waterfalls, Gantt roadmaps, funnels, market-size rings, with growth arrows and calloutsSome chart support; consulting chart types not described
PowerPointNative, editable PPTX; full web editor (every shape and text editable, one-click smart layouts); PowerPoint add-in on Microsoft AppSourceIt is PowerPoint
PriceFree (3 decks); Pro €29/month or €288/year for 20 decks a monthIncluded in Microsoft 365 plans with Copilot

Where Whyston pulls ahead

  • The argument, not an outline. Whyston writes the governing thought, SCQA arc, MECE pillars and an action title on every slide.
  • Numbers a partner can check. Every figure labelled documented, derived or assumption, with a Figures and Assumptions page.
  • All your sources. Spreadsheets, PDFs, decks and notes, not a single Word file.
  • Consulting exhibits. Native waterfalls, Gantt roadmaps and annotated charts.
  • A full slide editor. Move, resize and restyle every shape, text box and chart; smart layouts change a slide's look and feel in one click.
Investment committee sample deck. Bear, base and bull cases, each with its value build, return multiple and the condition that makes it true.
Investment committee sample deck. Bear, base and bull cases, each with its value build, return multiple and the condition that makes it true.

When Copilot in PowerPoint may be enough

  • A quick internal draft from a prompt or one Word document.
  • Your organisation already pays for Copilot and the deck will not face a board.

Choose Whyston if

  • The deck comes from a data room, a financial model, research or interview notes.
  • A partner, a board or an investment committee will ask where each number came from.
  • You need the storyline and the action titles written, not only the slides.
  • The team will keep working in PowerPoint after the first draft.

See all 25 tools compared: the best AI tools for consulting decks.

Frequently asked questions

Is Copilot in PowerPoint good enough for consulting decks?
It is a quick way to get a first draft inside PowerPoint. Microsoft's documentation describes creating a deck from a prompt or a Word file; it does not describe a consulting storyline, action titles or labelling where numbers come from, which is what Whyston is built for.
Can I use Whyston inside PowerPoint like Copilot?
Yes. Whyston has a PowerPoint add-in listed on Microsoft AppSource, and its web app exports native, editable PowerPoint.

Sources and further reading

  1. Create a new presentation with Copilot in PowerPoint — Microsoft
  2. Microsoft 365 Copilot — pricing — Microsoft

Product and company names are trademarks of their respective owners and are used only to identify their products. Whyston is not affiliated with, endorsed by or sponsored by any of them. Facts about other products come from their public websites and documentation on the dates stated; prices and features change, so check the vendor before you buy.