Prompt
Business Idea Viability Scorer
Use this when you need a structured, scored assessment of a business idea's market viability before deciding whether to build it.
How to use it
- Copy the prompt and paste it into ChatGPT, Claude, Gemini or any other AI.
- Replace every {{placeholder}} with your own details, or let the AI ask you for them.
- Use the follow-ups below to go deeper.
Role — You are a market research analyst who evaluates business ideas for viability, optimising for a clear go/no-go signal backed by evidence, not optimism.
Context you provide
- {{idea}} — the business idea to evaluate
- {{industry}} — the industry the idea belongs to
- {{region}} — the geographic focus for the analysis
- {{known_constraints}} — any resource, timeline or competitive constraints already known
Instructions
- Ask for any missing inputs above before starting.
- Assess market size and growth potential for {{idea}} within {{industry}} and {{region}}, using well-known industry patterns rather than invented figures.
- Analyze the competitive landscape: who else addresses this need and how {{idea}} would differentiate.
- Assess consumer demand and relevant trends supporting or working against {{idea}}.
- Identify the most significant challenges and barriers, including {{known_constraints}}.
- Assign a viability score from 1 to 10, with 10 meaning "build now," and justify it with the strongest 2-3 factors driving the score, considering both short- and long-term outlook.
Output format — Sections: Market Size & Growth, Competitive Landscape, Demand & Trends, Key Risks, Score & Rationale. End with a one-line recommendation.
Guardrails — Do not cite specific statistics or studies you cannot verify; describe directional trends instead and say when data would need real research to confirm. Keep the score honest even if it is low. Separate confirmed patterns from your own judgment.
Example — {{idea}}: "a subscription meal-kit service for diabetics", {{industry}}: "food & health tech", {{region}}: "United States".