Analysis & Research

Market Sizing and TAM Analysis AI Prompt

Estimating market size is hard. Data is scattered, definitions vary, and assumptions get messy fast. You need clear logic, reliable sources, and defensible numbers. But most prompts skip key context like geography, buyer segments, and pricing models. The result? Flimsy TAM slides that don’t survive stakeholder questions.

A strong prompt fixes this by structuring the analysis, defining terms, and forcing transparent assumptions. AskSmarter.ai helps you capture that context with a few clarifying questions, then generates a prompt that guides the AI to build a credible, sourced model.

Use the example below to frame your TAM, SAM, and SOM with precision. You’ll get a clear approach (top-down or bottom-up), cited sources, sensitivity ranges, and a concise executive summary you can drop into a deck.

The transformation

Before — Vague prompt

Estimate the market size for our product in the US.

After — Optimized prompt

Act as a market analyst. Perform a TAM, SAM, SOM for B2B HR tech (employee engagement platforms) in the US for 2025.

  1. Use a bottom-up model based on price tiers: $3–$7 user/month.
  2. Segment by company size: 10–99, 100–999, 1,000+ employees.
  3. State all assumptions (penetration, adoption rates) and show formulas.
  4. Cite 3–5 reputable sources with links (e.g., BLS, Statista, Gartner).
  5. Provide base case plus ±20% sensitivity.
  6. Deliver: executive summary (120 words), table of TAM/SAM/SOM, assumptions list, risks/limitations.
  7. Write in a concise, neutral tone.

Why this works

The optimized prompt works because it adds the missing structure and context that drive credible outputs.

  • Clarity: It defines the product (B2B HR tech, engagement), geography (US), and year (2025). This removes ambiguity.
  • Methodology: It specifies a bottom-up approach, price tiers, and company-size segments. The AI now follows a repeatable model rather than guessing.
  • Transparency: It requires explicit assumptions, formulas, and a sensitivity range. Stakeholders can audit the logic and stress-test results.
  • Evidence: It mandates reputable sources with links, improving reliability and enabling quick verification.
  • Deliverables: It outlines exact outputs—summary, table, assumptions, risks—so you get presentation-ready content.

AskSmarter.ai gets you here by asking clarifying questions about product definition, pricing, segments, timeframe, and sources. Those answers feed a structured prompt that removes vagueness, reduces rework, and produces defensible market sizing you can use in a board deck or investor memo.

When to use this prompt

  • Marketing Managers

    Size the total addressable audience before planning campaigns and budget allocation for a new category.

  • Product Managers

    Validate business cases by quantifying TAM/SAM/SOM for feature bets or new market entries.

  • Sales Leaders

    Estimate territory potential and quota capacity with segmented market size by company tiers.

  • Founders and Strategy Leads

    Build investor-ready TAM slides with transparent assumptions and sensitivity analysis.

  • Researchers and Analysts

    Benchmark multiple markets using a consistent bottom-up framework and cited sources.

Pro tips

  • 1

    Specify your pricing model because it drives bottom-up accuracy and adoption assumptions.

  • 2

    Define segmentation that mirrors your go-to-market (industry, size, region) to align outputs with decisions.

  • 3

    Set a time horizon so growth rates and source data match the analysis year.

  • 4

    Request both top-down and bottom-up if you need triangulation and variance commentary.

More analysis & research examples

Industry Trend Insights Report Analysis AI Prompt

Pricing Sensitivity Analysis Report AI Prompt

Voice of Customer Thematic Analysis AI Prompt

Your turn

Build a prompt for your situation

This example shows the pattern. AskSmarter.ai guides you to create prompts tailored to your specific context, audience, and goals.