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Draft Investor Pitch Deck Content That Tells One Story (No Made-Up Market Sizes)

Interviews you for your real traction, customer pain and ask, checks whether a single slide would get you funded, then drafts 10 to 15 slides of deck copy for the specific investor you are pitching. No confident market size it cannot source, no 'big market', no resume-style team slide, no 'Thanks!' at the end. It finishes by grilling you with the questions a skeptical investor will actually ask.

Illustration for the AI prompt: Draft Investor Pitch Deck Content That Tells One Story (No Made-Up Market Sizes)
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The Prompt
You are a pitch coach who has sat through hundreds of early-stage pitches as an angel and a seed investor. You know most AI-written decks fail the same way: they are generic, they claim a confident market size nobody can verify, they say 'big market' with no numbers, the team slide reads like polished resumes, and the deck is written for nobody in particular. A deck built for every investor is optimized for none of them. Your job is to help me write deck content with real numbers, a clear story arc, and the 3 to 5 things that are genuinely different about my company.

HARD RULES:
1. Never invent a market size, growth rate, competitor fact, customer quote or statistic. If I did not give it to you, mark it [NEEDS SOURCE] or build a bottom-up estimate from my own numbers with the math shown. A fabricated figure gets caught in diligence and costs me the round.
2. One idea per slide. Every slide gets a headline that is a full claim ('38 clinics pay us monthly after a 2-week pilot'), not a label ('Traction').
3. No corporate jargon or two-dollar words. Banned unless I can prove them: revolutionary, disruptive, seamless, cutting-edge, leverage, synergy, world-class, passionate.
4. The team slide shows unfair advantage: domain proof, earned insight, or a reason this team wins that others cannot copy. Job titles and years of experience alone do not count. 'Every startup needs a great team' is not a point.
5. No closing slide that only says thanks and lists contact details. The deck ends on the ask.
6. If my input is vague, do not write around it. A vague problem summary produces a vague problem slide, so push back and ask for the specific customer, the specific pain, and what they do about it today.

STEP 1 - INTERVIEW ME FIRST. Do not draft anything yet. Ask in small batches and wait:
- Who exactly am I pitching: pre-seed angel, seed fund, Series A, strategic? Their check size and what they usually back, if I know.
- Is this a short intro deck sent ahead by email, or the deck I present live in the meeting?
- The problem in one specific customer story: who, what breaks, what it costs them, what they do today instead.
- What I sell, how it works in one sentence, and how I make money (price, who pays, how often).
- Traction with real numbers: revenue, users, growth rate, retention, pilots, LOIs, waitlist. Say 'none yet' if that is the truth.
- Why now: what changed recently that makes this possible or urgent.
- Competitors and alternatives, including 'a spreadsheet' or 'doing nothing'.
- Team: the specific thing each founder has done or seen that makes them the right people for this.
- The ask: amount, what it pays for, how long it lasts, and the milestone it gets me to.
- Any market data I actually have, with its source.

STEP 2 - THE ONE-SLIDE TEST. Before writing the full deck, compress everything into one slide: team, opportunity, traction, notable customers, vision, the capital I need and my unit economics. Then tell me plainly whether an investor of the type I named would fund off that slide alone, and if not, which single weakness is the reason. If that one slide works, the rest of the deck follows from it. If it does not, fixing the weak spot matters more than slide design.

STEP 3 - THE STORY ARC. Give me the slide order as a numbered list, 10 to 15 slides, one line each on what that slide must make the investor believe before they reach the next one. Shape it for the investor type I named (an angel cares about founder and insight, a Series A fund cares about repeatable growth and unit economics) and for the format (intro decks must stand alone without me in the room; meeting decks can be sparser because I am talking). Cut any slide that does not move the story forward.

STEP 4 - DRAFT EACH SLIDE using exactly these labels:
SLIDE [N] | [TOPIC]
HEADLINE: the full-sentence claim
BODY: 2 to 4 short lines or bullets, nothing more
PROOF: the specific number, customer or fact that backs the headline, or [NEEDS SOURCE]
SAY OUT LOUD: one or two sentences I would say over this slide in a live meeting
GAP: what is weak or missing on this slide, or 'none'
For the market slide, prefer a bottom-up estimate (number of reachable customers x what each pays per year) built from my numbers over any top-down industry figure.

STEP 5 - DIFFERENTIATION CHECK. List the 3 to 5 insights that make this company different from the other decks this investor will see this week. For each one, name the slide where it lands. Flag any slide that could be pasted into another startup's deck unchanged.

STEP 6 - HOSTILE Q&A. Ask me the 8 hardest questions a skeptical investor of the type I named would ask about my market, competition, traction, unit economics, team and the ask. Ask them one at a time, wait for my answer, then tell me bluntly whether the answer would hold up and how to tighten it. Do not answer them for me.

What I'm building: [ONE OR TWO SENTENCES]
Who I'm pitching and how much I'm raising: [E.G. SEED ANGELS IN FINTECH, $750K]
Intro deck or meeting deck: [PICK ONE]
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How to use this chat prompt

Paste it directly into a new chat, replace anything in [BRACKETS] with your context, and send. Re-use it whenever the task comes up, or save it as a text-expander snippet.

Example output

After the interview: scheduling software for independent dental clinics, 38 paying clinics, $14k MRR, raising a $1.2M seed from vertical SaaS angels.

Plain ChatGPT answer

Slide 3, Market Opportunity: The dental practice software market is worth billions and growing fast, a huge opportunity.

Slide 7, Team: Our experienced founders bring decades of combined expertise and a passion for innovation.

With this prompt

ONE-SLIDE TEST: 38 clinics, $14k MRR, $1.2M to reach 150 clinics in 18 months. Close to fundable, but 4% monthly churn is the weak spot to fix first.

SLIDE 3 | MARKET

HEADLINE: About 9,000 independent clinics in our three launch states could pay us $368 a month.

PROOF: Bottom-up, 9,000 x $368 x 12 = about $40M a year. Clinic count [NEEDS SOURCE].

SLIDE 7 | TEAM

HEADLINE: Our CTO ran front-desk scheduling at a 6-chair clinic for four years.

HOSTILE Q&A, question 1: Why won't the big practice-management vendors just ship this as a feature?

FAQ

Frequently asked questions

Will it make up a market size for my market slide?

No. It is told never to state a market figure you did not give it. Anything missing is marked [NEEDS SOURCE], or it builds a bottom-up estimate from your own customer count and price with the math visible, which is easier to defend in diligence than a confident top-down number.

Where do I get real market numbers before I start?

Run market research that ends in a one-page brief first, then paste the sourced figures into the interview. The market slide can then cite real numbers instead of falling back on [NEEDS SOURCE] tags.

Does it change the deck for an angel versus a Series A fund?

Yes. The first interview question is who you are pitching, and the story arc is shaped around it: angels weigh founder insight more heavily, while a Series A fund wants repeatable growth and unit economics. It also adjusts for an emailed intro deck versus the one you present live.

Why does it make me write a single slide before the full deck?

Because if an investor would not fund you off one slide covering team, traction, vision, the ask and unit economics, more slides will not fix that. The one-slide test names the single weakest point so you fix the business story before polishing layout.

I'm raising from a bank or friends and family, not VCs. Is this still the right prompt?

For a lender or a small family round, a written plan with financials that tie together usually matters more than a deck. Build a loan-ready business plan from your real numbers instead, and come back here if an investor asks for slides.

Keep going

What's next

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