Build the share in
You can build anything now, which means building is no longer where you win. The win is distribution, and the good news is that the same skills that build the product can build the growth in. This is the whole reason the playbook keeps returning to it: when the capability is commoditised, the scarce thing is attention, and the founders who treat distribution as an afterthought lose to ones who built it into the product from the start.
The most durable growth is virality baked into the workflow. Do not bolt a share button onto a finished app and hope. Build the share into the moment the product creates value, so that right after a user makes something with your app, the natural next step is to send it out into the world. People do not share apps, they share the thing the app made for them, and every one of those shared artefacts is someone marketing your product for free. To go viral you need other people doing your marketing, so design the core flow to produce something worth passing on.
Price for the value and the cost of your specific product. Usage-based pricing is the modern default and it fits AI products especially well, because your own cost moves with usage and your price should move with it too. Watch the cost per action closely on anything that calls an AI or an external service, and make sure the value the user gets clearly outruns what each action costs you. The full version of this lives in the pricing strategy playbook.
For finding out whether you have something real, run a short, focused sprint, a few weeks aimed at one question only: do people actually pay and stay. That is product-market fit, and you want the answer fast and cheap, not after a year of polishing. Pick one niche and aim to own it rather than being vaguely useful to everyone, and let a disciplined channel-selection pass tell you where to put your one bet, then run it as a real growth experiment instead of a vibe.
Build fast and clean with everything in this playbook, then spend the time you saved on getting used. That is the whole bet: the building is commoditised, so the edge is whether anyone shows up.