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Text & chat prompt

Validate a business idea

Validate a business idea: a free, copy-paste prompt for ChatGPT, Gemini and Claude. Paste the prompt and replace each [BRACKETED] field with your own details.

Text & chatChatGPTGeminiClaude

The prompt

Act as an experienced startup advisor and pressure-test my business idea.

Idea: [IDEA]
Target customers: [CUSTOMERS]
City / market: [MARKET]
Starting budget: [BUDGET]

1. Who has this problem most, and how are they solving it today?
2. The main competitors and how I'm different.
3. Simple unit economics: price, cost, and margin per sale.
4. The 3 biggest risks, and how to test each one cheaply in 2 weeks.
5. An honest verdict: go, tweak, or drop.
Copy & open ChatGPTCopy & open GeminiCopy & open Claude Customise in the builder

Pro tip: Ask it to “argue against my idea as hard as possible” for a tougher critique.

How to use this prompt

  1. Open ChatGPT and start a new chat.
  2. Paste the prompt.
  3. Replace each [BRACKETED] field with your real details and paste in your own text where asked.
  4. Reply with follow-ups such as "make it shorter" or "make it sound more like me".

Prompt at a glance

Category
Text & chat
Works with
ChatGPT · Gemini · Claude
Length
77 words
Fields to fill in
IDEA, CUSTOMERS, MARKET, BUDGET
Last updated

Frequently asked questions

Which AI tools work with this prompt?

It is written for ChatGPT, Gemini and Claude. Paste it into your preferred tool and adjust the wording if the result is off.

What do I need to fill in?

Replace these fields before you send it: IDEA, CUSTOMERS, MARKET, BUDGET. Each field shows an example in the prompt.

Should I paste private information into the prompt?

Only what the task needs. Remove names, contact details and other sensitive data before pasting a resume or document into any AI tool.

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