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How to Use ChatGPT to Generate and Compare Business Ideas

Like a VC Would

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Prompt Engineering: How to Use ChatGPT to Generate and Compare Business Ideas

šŸ‘‡ You’re here because:

  • You want to launch something on the side.

  • You’ve got too many ideas (or none).

  • You don’t want to waste 3 months building the wrong thing.

Good news: ChatGPT is the perfect ā€œco-founderā€ for this early-stage problem. It’s fast, logical, and—unlike friends—it won’t just say ā€œcool idea!ā€ and walk away.

Step 1: Set Clear Filters

If you ask ChatGPT ā€œgive me 10 business ideasā€ — you'll get fluff.

Instead, use this focused prompt:

ā€œGive me 5 business ideas that:
• require < $500 to start
• solve a real problem
• use automation or AI
• are not dropshipping
• can be tested in 30 days
• have clear monetization (subscription, course, tool, etc.)ā€

šŸ’” Tip: Replace these with your constraints — maybe it’s ā€œfor B2B only,ā€ or ā€œmust use WhatsApp,ā€ or ā€œmust help creators.ā€ Constraints = better output.

Step 2: Ask ChatGPT to Compare the Ideas

Once you have a list, prompt ChatGPT to score and compare them like this:

ā€œNow put these 5 ideas into a table and score them 1–10 for:
• Market Size
• Monetization Potential
• AI Leverage
• Ease of Execution
• Personal Fit (for someone who’s a good writer and marketer)ā€

Example Output Table

Idea

Market Size

Monetization

AI Leverage

Ease of Exec

Personal Fit

Total

AI-powered podcast clipping tool

9

7

8

6

6

36

Local biz review summary

7

8

9

8

7

39

Shopify product copy with AI

9

9

8

9

9

44

Personal news briefings

6

5

10

7

9

37

AI property listing generator

8

9

7

6

6

36

Now you’ve got a front-runner. Ask ChatGPT:

ā€œWhat are the biggest risks or weaknesses with this top idea?ā€

This prevents shiny-object syndrome before you spend a cent.

Step 3: Turn It Into a Lean MVP Plan

Once you pick your idea, ask:

ā€œCreate a lean MVP plan for this Shopify product description generator.
Include tools, steps, and timelines over 3 weeks. Budget = $500.ā€

Example tools ChatGPT might suggest:

  • Carrd / Typedream → quick site

  • Tally / Typeform → collect leads

  • Make / Zapier / Notion / Airtable → backend

  • ChatGPT / Claude / Gemini → content generation

  • Stripe → payments

Then prompt:

ā€œNow write the first 5 tweets + 5 LinkedIn posts to promote it.ā€

Suddenly you’re not stuck in idea mode. You’ve got a real plan and content to launch it.

Bonus Prompt:

ā€œNow act like a competitor. What product would you build to beat me in 6 months?ā€
This is gold. It reveals how to stay ahead.

Recap

ChatGPT is not just for writing tweets or meal plans. It’s a strategy co-pilot when you treat it like one.

Start with:

  • Clear filters

  • Comparison table

  • Objection testing

  • MVP roadmap

  • Content prompts

Want to build your own AI-powered side project or micro-business?
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What did you come up with using this prompt?
Send it to us — we’d love to feature the best ideas in the next edition.

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