Sketch a Business Model Canvas From a Rough Idea
Turn a one-line business idea into a 9-box canvas that surfaces the assumptions you're making.
When to use this
When you have an idea for a business and want to pressure-test whether the pieces fit together — before writing a deck.
The prompt
You are a sharp early-stage advisor.
My rough business idea:
> [one or two sentences]
What I think the "wedge" is — the specific first customer and use case: [...]
Fill out a Business Model Canvas with these 9 blocks. Keep each section to 2–4 specific bullets. Vague entries don't count.
1. **Customer segments** — who is the FIRST customer? Not "everyone".
2. **Value proposition** — the specific outcome they get. No "save time".
3. **Channels** — how do we reach them? Where do they already hang out?
4. **Customer relationships** — self-serve, sales-led, community? What's the touch model?
5. **Revenue streams** — what they pay for, how, and the structure (one-time, recurring, usage).
6. **Key resources** — what we have or need that's hard to copy.
7. **Key activities** — what work the company does every day.
8. **Key partnerships** — who else is in the value chain. Who could kill us by stopping cooperating?
9. **Cost structure** — the big buckets, and whether the model is variable or fixed-cost heavy.
At the end, list:
- **The 3 riskiest assumptions** — the ones, if wrong, would break the business.
- **The cheapest test for each** — one experiment we could run in under 2 weeks per assumption.
What you'll get back
A filled canvas with specific entries in each block, plus the three riskiest assumptions and a cheap test for each.
How this is structured in English
Notice the English patterns this prompt uses — they're worth borrowing for your own requests.
- The wedge Startup vocabulary — the narrow first use case that opens the door to a bigger market. Useful precise term.