research · PromptZap Team

Transparent Market Sizing

TAM/SAM/SOM with the work shown: top-down vs bottom-up estimates, every assumption listed as a swappable bullet, ranges instead of fake precision.

Framework

standard

Model targets

claude, chatgpt, gemini

Prompt text

Estimate the market size for [product/idea/niche] using a transparent, checkable methodology — not a made-up number.

Show your work:
1. Top-down estimate: total addressable market from industry reports/known figures, then narrow by relevant filters
2. Bottom-up estimate: realistic number of target customers × realistic price/frequency
3. Where the two estimates disagree, explain why, and pick a range rather than a false-precision single number
4. State every assumption explicitly as a bullet, so I can swap in my own numbers
5. Flag which numbers are sourced/known vs. estimated/guessed

End with a TAM/SAM/SOM breakdown in a simple table.