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Market Sizing Brief

Describe what you sell and to whom, and get a market sizing brief with a top-down and a bottom-up estimate, every source figure linked and dated and every assumption written out.

  • Free
  • No sign-up to try
  • Works as you type

What you'll get

Make a market sizing brief, with:

  • a top-down estimate built only from figures in the sources, each linked and dated
  • a bottom-up estimate from your own figures, with every assumption listed
  • the gap between the two and what explains it
  • the assumptions that move the result most
  • where the sources give no figure, a note saying so instead of a guess
  • what to check next

WZRD finds current web sources on your topic first and cites them. Written by AI from your answers when you create it: read it through before you use it.

Answer: What do you sell, and to whom?.

See a worked example

How it works

How the Market Sizing Brief works

  1. 1

    Answer a few questions

    Say what it's about and who it's for.

  2. 2

    WZRD writes it

    WZRD finds current web sources, reads them and writes it, citing each source.

  3. 3

    Check and share

    Read it through, edit anything in the Room, then share one link.

Worked example

What it makes

Make a market sizing brief, with:

  • a top-down estimate built only from figures in the sources, each linked and dated
  • a bottom-up estimate from your own figures, with every assumption listed
  • the gap between the two and what explains it
  • the assumptions that move the result most
  • where the sources give no figure, a note saying so instead of a guess
  • what to check next

Written by AI from your answers when you create it, from current web sources it cites. Read it through before you use or share it.

Who it's for

Who uses it

  • Founders

    Put a market size in a pitch with the working shown.

  • Product managers

    Size an opportunity before asking for budget.

  • Students

    Practise top-down and bottom-up sizing with real sources.

Good to know

What to consider

  • An estimate, not a forecast: it's only as good as the source figures and your own assumptions, all of which are shown.
  • Published market figures vary widely and often come from vendor or analyst summaries: open each source and check its date.

Questions

About the Market Sizing Brief

What's the difference between top-down and bottom-up?

Top-down starts from a published total market figure and narrows it; bottom-up multiplies the number of customers you could reach by what each pays. Showing both helps you see whether the estimate holds up.

Where does the information come from?

Before writing, WZRD searches the web for current sources on your topic and reads them; the brief cites them with links. Check the sources before you rely on a claim.

Who writes the content?

WZRD's AI writes it from your answers when you create it, so every one is different. Read it through before you use or share it: AI can make mistakes. You can edit everything in the Room.

Make your brief now

Free, no sign-up to try. It becomes a Room you can edit, publish and share.

Create my brief

Related

Related tools

  • Industry Brief GeneratorDescribe an industry and what you need to know, and get a sourced industry brief as a Room: how it works, the main players and the trends as the sources describe them, with links and dates.
  • Business Plan GeneratorDescribe the business and the numbers you have. Get a complete business plan as one link: the summary, market, plan and financials with charts, and an AI agent that answers questions about it.
  • Pitch Deck GeneratorDescribe the company, the traction and the raise. Get a pitch deck as one link: the story, product, market, traction and the ask, with an AI agent that answers investors' questions between meetings.
All tools

WZRD turns a goal, a file or a website into a room people can explore, ask and act in, with an AI agent that answers by voice and text from your content.

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