Asking good questions
Ask is for questions about real places and buildings: what fits on a plot, what a material costs, how a rule usually works, what to check before you build.
Name the place and the project. "A 3-bedroom house on a 50 by 100 ft lot in Austin" gets a far better answer than "a house".
Answer depth
Fast gives a short answer quickly. Balanced reads several sources and is the default. Deep reads more, checks more and takes longer; it counts as three answers from your daily allowance and needs an account.
Turn a chat into a space
When a chat is about your own project, Ask notes the facts you gave: the site, the rooms, the style, the budget. Open in Studio carries them into a new space so you never type them twice.