A practical guide
How to use AI to write a business plan
An assistant can organize your notes. It cannot find out whether anyone will pay you.
Published November 1, 2026 · Luke F. Walton
An assistant can help organize your thinking, suggest questions, and turn rough notes into readable prose. It can also produce plausible customers, statistics, and financial claims that have no basis in your business.
Give it your actual context and a small job. Keep responsibility for deciding what belongs in the plan.
1. Write what you know first
Start in the planner. Describe the idea, the people who might buy, and your initial offering. Leave unknowns blank. Enter numbers you can support, or label them as assumptions.
You do not need an assistant to complete any part of the workspace.
2. Ask for help with one area
Open “Work on this with your AI” in a planning area. The prompt includes your current lean plan and asks for help with that area. Copy it into any assistant. The AI primer explains the options.
A useful request sounds like this:
Help me challenge the customer assumptions in this plan. Separate what I have told you from what you infer. Ask about missing information. Do not invent market statistics or customer evidence.
Use the assistant to identify things to investigate. Ask it to explain why a proposed question or action would change a decision.
3. Read the response critically
Ask yourself:
- Did it use the context I gave it?
- Did it invent a person, a sale, a statistic, or a source?
- Is the recommendation practical for the kind of business I am starting?
- Which statements can I verify independently?
- What would make me change my mind?
When it cites a source, open the source. Check that it supports the claim, applies to your situation, and is current. Comparing answers from two assistants can reveal disagreements; agreement between them does not establish a fact.
4. Bring back what is useful
Paste the response into that section’s review box. Read the preview and choose “Accept as a note.” The accepted text is labeled as coming from an assistant. It sits beside your answers and does not replace them.
Copy a useful idea into an answer yourself and choose an appropriate source marker. Update calculator inputs manually. The site calculates the arithmetic; it does not trust arithmetic inside an assistant’s prose. Undo restores the previous note if you accept the wrong response.
5. Ask for a longer plan when you need one
The lean-plan view provides a prompt for drafting a full business plan. Copy it into your assistant and explain the audience and purpose. Keep missing information and assumption markers visible. A longer draft remains an assistant note; it does not replace your structured plan.
Know what you are sharing
Copying keeps the prompt on your clipboard. It goes to an assistant only when you paste it there or open an assistant link. An opened link includes the prompt in the address. The provider receives that content under its own privacy policy. This site does not receive it.
Long prompts are copy-only because they may not fit in a direct link. That does not change what the prompt contains or how you can use it.