A Founder’s Guide to AI Prototyping (In Under 48 Hours)
9/22/2025 •Product •6 min read
Why 48 Hours Matters
Founders waste weeks “researching” instead of validating.
But AI products follow a different rule:
**You can find proof-of-value in 48 hours if you prototype the right thing.**
The goal isn’t polish.
The goal is signal.
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Step 1 — The 6-Line User Script
Before touching code, write a mini-script:
• Who is the user?
• What do they try to do?
• What’s the trigger moment?
• What output do they expect?
• What counts as success?
• What counts as failure?
If you can’t answer these, you don’t have an idea — you have a fantasy.
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Step 2 — Build Only the Core Loop
AI products have one “core loop”:
Everything else is decoration.
For the first 48 hours:
• No auth
• No dashboards
• No onboarding
• No database
• No UI polish
Only **core loop**.
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Step 3 — Hardcode What You Can
You don’t need a vector DB to validate the idea.
Use a plain array.
Embed offline.
Mock APIs.
Your weekend project isn't supposed to scale —
it’s supposed to **prove value**.
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Step 4 — Show It to 5 Users
Not friends.
Not coworkers.
Real users.
Ask:
• What did you expect to happen?
• What surprised you?
• Would you pay to use this weekly?
• What would make it 10× more useful?
You now have real signal.
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Step 5 — Make the Next Bet
If users say:
“This is cool but not useful”
Kill it.
“This helps, but it’s missing X”
Prioritize X.
“Where can I buy this?”
Go all in.
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Key Takeaway
AI prototyping is not an art project.
It’s a **structured search for truth**.
Move fast, validate fast, kill fast.

