Users often ask which model they should pick in PromptUI. The short answer is that model choice matters, but build-lane choice usually matters more.
Start with PromptUI defaults unless you have a clear reason not to
PromptUI already chooses defaults around task type, risk, and cost. If you are unsure, start with the recommended lane and model setup rather than trying to micromanage the first pass.
Use fast when speed matters more than polish
The fast path is useful for lighter prototypes, rough drafts, and quick exploration. It is the right choice when you need a first pass quickly and you expect to iterate.
Use quality when the output needs to be shareable
If the app is multi-section, likely to be shown to customers or teammates, or needs stronger proof before deploy, choose the quality lane. That is usually a better quality upgrade than switching frontier models while keeping the same fast lane.
Ask for Verified Builder when the prompt is higher risk
For more complex or higher-risk work, PromptUI can route into Verified Builder under controlled-beta conditions. That lane is designed for stronger verification, but it should still be treated as a controlled path rather than a blanket public default.
Use pricing and workflow together
PromptUI pricing now separates builder plans from the standalone Growth Agent tier. If you mainly want the builder, compare the builder plans on pricing. If you want GTM without builder credits, Growth Agent has its own lane.
The practical rule
If you care most about cost, start lighter. If you care most about quality, move up the lane first and only then reach for more expensive model choices. PromptUI works best when build lane, proof expectations, and the real shipping goal all match.