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A free guide by Mariah Brunner ↗ INSTAGRAM ↗ TIKTOK

Which AI Deck Tool
Should You Use
In 2026?

ChatGPT now lives inside Microsoft PowerPoint. Here’s how to use it, plus my honest pick for when to reach for ChatGPT, Claude, Copilot, Gamma or Canva instead.

In May 2026, OpenAI launched ChatGPT for PowerPoint, an add-in that opens as a sidebar right inside PowerPoint. You describe the deck, or upload notes or an old deck, and it builds editable slides you can tweak like any normal PowerPoint. (Thurrott)

It works on free and paid ChatGPT plans, with tighter usage limits on Free and Go. Below is how to set it up, the brief I paste before asking any AI to build a deck, and which tool I’d pick for which job.

Set Up ChatGPT In PowerPoint

01

Install the add-in

Open PowerPoint on your computer or on the web. Go to Home, click Add-ins, search for ChatGPT and add it. Check that the publisher is OpenAI, because look-alike add-ins exist.

02

Sign in

Open ChatGPT from the ribbon and sign in with your OpenAI account. A free account works. On a work computer, your IT team may need to allow add-ins first.

03

Give it the brief

Paste the brief from the prompt below, or upload your notes, a doc or an old deck. The more context you give, the closer the first draft gets to something you’d actually present.

04

Edit like normal

The slides it builds are regular PowerPoint slides. Swap text, fonts, colors and images by hand, or ask the sidebar to change a specific slide.

Good To Know

OpenAI still calls it a beta. It can change or delete content if a request is unclear, so save a copy of important decks first. Complex templates and some fonts may still need fixing by hand.

The Brief To Paste First

Whichever tool builds the deck, the input decides the output. Paste this into Claude or ChatGPT first. It interviews you, then hands you a brief you can drop into any deck tool.

Deck Brief Builder
You are my deck strategist. I'm about to build a presentation with an AI deck tool (ChatGPT in PowerPoint, Claude in PowerPoint, Copilot, Gamma or Canva). Before I prompt that tool, help me write a sharp brief I can paste in. If I've attached notes, a doc, an old deck or data, read it first and pull out anything that answers the questions below so you don't ask me twice. Ask me these 6 questions ONE AT A TIME. Wait for each answer before asking the next. 1. What is the deck for, and what meeting will it be shown in? (sales pitch, investor update, training, internal report, conference talk) 2. Who is in the room? Their role, seniority and what they already know about the topic. 3. What is the ONE outcome I need from this meeting? (a yes on a deal, budget approval, a decision, alignment) 4. What are the 3 to 5 main sections, in order? A rough outline is fine. 5. What's the tone? (formal, scrappy, story-driven, data-heavy) 6. What are the non-negotiables? (template, logo, brand colors, a disclaimer slide, specific numbers) Then write the brief in exactly this format: TITLE OF THE DECK: AUDIENCE: THE ONE OUTCOME: SLIDE-BY-SLIDE OUTLINE: for each slide give the headline (a full sentence that states the point, not a label), a one-line purpose, 2 to 3 supporting points, and a visual or chart suggestion. TONE AND VOICE: NON-NEGOTIABLES: THE BRIEF FOR THE DECK TOOL: one 6 to 8 sentence paragraph in second person that I can paste straight into the deck tool. Rules: - Every slide must earn its place by moving the audience toward THE ONE OUTCOME. Cut any that don't, and tell me which you cut. - Never invent numbers, quotes or results. If a slide needs a stat I haven't given you, write [NEED: what stat] so I can fill it in. - Keep it opinionated. A generic brief produces a generic deck in any tool.
Which Tool For Which Job

01

ChatGPT in PowerPoint

Best when the deck has to be a PPTX and your team already lives in PowerPoint. Good for fast first drafts from notes. Weak spot: strict brand templates.

02

Claude in PowerPoint

Anthropic has its own PowerPoint add-in on Pro, Max, Team and Enterprise plans. It builds slides inside your existing templates, edits single slides without redoing the whole deck, and turns bullets into native charts and diagrams. It’s also my pick for shaping the argument and writing the slide headlines. (Claude docs)

03

Microsoft Copilot

Built into PowerPoint itself, including Microsoft 365 Personal and Family plans, where only the subscription owner gets the AI features. It can turn a prompt or a Word doc into a deck. Pick it if your company already pays for Copilot and the deck pulls from internal files. (Microsoft)

04

Gamma

Best when you want it to look great with almost no design work. It exports to PowerPoint and PDF, and to Google Slides by uploading the PPTX, but expect some cleanup on fonts and gradients. (Gamma Help)

05

Canva

Best for visual, social-flavored decks with lots of imagery. Magic Design turns a prompt into a multi-slide draft you then edit. Formal corporate decks aren’t where it shines.

My 30-Second Pick
  1. Must be PPTX on a corporate template? Claude or ChatGPT in PowerPoint. Use Copilot if your company already pays for it.
  2. External pitch where looks matter? Gamma, then export to PPTX if the other side needs it.
  3. Board, investor or strategy deck? Build the argument and headlines in Claude first, then move it into a design tool.
  4. Visual and scrappy? Canva.

I stack them all the time. Claude for the words, Gamma or PowerPoint for the design, Canva for any custom graphic that goes inside. The brief above is what keeps the result from looking generic.