Creating a Pitch Deck with Gamma: The Brief That Changes Everything

The problem: your pitch deck doesn't cut it

You have a solid project. You know your market. But when it's time to pitch to investors or clients, your PowerPoint deck looks amateur. Slides are cluttered, the message isn't clear, and you spend more time fighting with layouts than refining your arguments.

Gamma promises to create presentations in minutes with AI. The problem? If you give it a vague brief like "Create me a pitch deck for my startup", you get a generic, flat result that looks like every other AI-generated deck.

The difference between an average pitch deck and one that opens doors doesn't lie in the tool. It lies in the quality of your brief.

Why Gamma requires a structured brief

Gamma works differently from classic presentation tools. Instead of starting with a blank page, you begin with a prompt that will structure your entire presentation.

The AI will:

• Define the number and order of slides
• Choose titles and subtitles
• Generate text content
• Suggest layouts and visuals

But it can't guess your unique positioning, key metrics, or the emotion you want to convey. That's where your brief becomes critical.

The structure of a Gamma brief that works

Here's the formula I use for all my Gamma pitch decks:

Create a [X]-slide pitch deck for [project/company type].

Context:
- Industry: [your industry]
- Target: [investors/clients/partners]
- Goal: [raise funds/sell/convince]

Desired structure:
1. [Slide 1 title] - [key message]
2. [Slide 2 title] - [key message]
[...]

Tone and style:
- [professional/startup/creative]
- Use short, punchy sentences
- Emphasize [your differentiators]

Mandatory elements to include:
- [Important number/statistic]
- [Testimonial/result]
- [Final call-to-action]

This template forces you to think before generating. That's exactly what separates a good pitch deck from a bad one.

Concrete example: pitch deck for a finance app

Imagine you're raising funds for a budget management app for African freelancers. Here's a complete brief:

Create a 12-slide pitch deck for BudgetPro, a mobile financial management app for freelancers.

Context:
- Industry: Fintech / B2C Financial Services
- Target: Early-stage investors in Africa and Europe
- Goal: Raise €500K in pre-seed

Desired structure:
1. Hook - The problem: 63% of African freelancers lack cash flow visibility
2. Solution - BudgetPro: simple dashboard, automatic forecasts, personalized alerts
3. Why now - 340% growth in francophone African freelancing since 2020
4. Traction - 2,400 active users, 89% retention at 30 days
5. Business model - Freemium: free + premium at €4.99/month
6. Market - TAM of 12M freelancers in francophone Africa, SAM of 2.8M
7. Competition - Positioning vs Wave, Expensify, Excel spreadsheets
8. Unique advantage - Mobile Money integration, irregular income adaptation
9. Product roadmap - Q2 2024: accounting export, Q3: multi-currency
10. Team - 3 founders: fintech + tech + growth
11. Financials - 24-month projection, break-even at M18
12. Ask - €500K to acquire 50K users and launch in Senegal

Tone and style:
- Professional but accessible
- Short sentences, concrete data
- Emphasize traction and African market knowledge

Mandatory elements:
- User testimonial on Solution slide
- Growth chart on Traction slide
- Visual comparison with competitors on Competition slide

This brief gives Gamma everything it needs to create a solid first version. You'll only need to adjust visuals and refine some wording.

Mistakes that kill your Gamma pitch deck

Mistake 1: Brief too short

❌ "Create a pitch deck for my delivery startup"

✅ "Create a 10-slide pitch deck for QuickDeliver, a 30-minute delivery service in Dakar, targeting local restaurants and shops. Goal: convince 3 Senegalese private investors to invest €150K."

Mistake 2: Forgetting to specify key numbers

Gamma will invent generic numbers if you don't give it yours. Always include your real metrics, even if they're modest.

Mistake 3: Not defining the target

A pitch for investors isn't the same as a pitch for clients or partners. Always specify who the deck is for.

Mistake 4: Inappropriate structure

The 12 slides I suggested follow proven logic. Don't start with team or financials. Hook → Problem → Solution → Traction → Business model is the winning sequence.

How to iterate after first generation

Gamma generates a first draft in 2-3 minutes. That's where the real work begins.

Classic adjustments to make:

1. Reduce text: Gamma tends to put too much content per slide. Keep maximum 3 bullet points or 1 impactful sentence per slide.

2. Replace generic visuals: AI images are pretty but impersonal. Integrate your real screenshots, team photos, data charts.

3. Strengthen final CTA: The last slide must say exactly what you expect (amount, next step, contact).

4. Check narrative consistency: Read the deck straight through. Each slide should naturally lead to the next.

You can also ask Gamma to regenerate specific slides with follow-up prompts:

Regenerate slide 4 on Traction emphasizing monthly growth more and adding an upward curve chart.

Automating multiple pitch deck creation

If you regularly create presentations (for different clients, markets, or versions of your project), you'll quickly realize that rewriting a complete brief each time is time-consuming.

This is exactly the use case where KayaPrompt becomes useful. You create a reusable brief template with variables:

Create a {{slide_count}}-slide pitch deck for {{project_name}}, {{project_type}}.

Context:
- Industry: {{industry}}
- Target: {{target}}
- Goal: {{goal}}

[...]

Then you just fill in the variables to instantly generate a new adapted brief. You can even connect this to Gamma via API to fully automate generation.

No magic, just organization and repeatability.

Final checklist before validating your deck

Before sending your pitch deck, check these 5 points:

• Each slide takes max 10 seconds to read
• Numbers are up-to-date and sourced
• The problem is clear in the first 2 slides
• The "Ask" or CTA slide is explicit
• Visuals reinforce the message (not just decoration)

A pitch deck is never perfect on the first try. But with a structured and precise brief, you start with 80% of the work already done.

Your turn

Gamma is a powerful tool, but it won't do the strategic work for you. The clarity of your positioning, the strength of your numbers, the power of your storytelling: all of that must be in your brief.

If you want to go further and industrialize your presentation creation with reusable prompt templates, try KayaPrompt. It's made exactly for that: transforming a good prompt into a reproducible system.

Now open Gamma and start by writing your brief. Not your deck. Your brief.