Do the work of a whole team, and spend your time on the calls only a founder can make.
Get the Startup Founder briefIn 2026, AI is the closest thing a founder has to a co-founder and a small team at once. It drafts the code, writes the marketing, researches the market, and handles the routine support that used to require hiring. What it can't do is choose what to build, earn a customer's trust, make the hard call under uncertainty, or supply the will to keep going — and that's exactly where a founder's time should go.
Paste these into Claude or ChatGPT and replace the bracketed parts with your own details.
Here's my startup idea: [describe]. Play a skeptical investor and a skeptical customer. Give the strongest objection from each and what I'd need to prove to overcome it.Write landing-page copy for [product] aimed at [audience]: a headline, subhead, 3 benefit sections, social-proof placeholders, and a call to action. Concrete and jargon-free.Help me build a simple monthly model for [business]. Assume [key assumptions] and lay out revenue, costs, burn, and runway, plus the 3 assumptions that most change the outcome.Here are notes from customer conversations: [paste]. Identify the top recurring pains and requests, rank them by frequency and urgency, and suggest what to build next.Draft a monthly investor update from these facts: [metrics, wins, challenges, asks]. Honest and concise, lead with the numbers, end with specific ways investors can help.The full library of tools, prompts, and tricks for your role — updated every week. Tap any card for a step-by-step walkthrough and examples.
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