How are AI generation counts calculated and when do they reset?

On the Free plan you get 5 itinerary generations per month. Here's exactly how that works:

• What counts: only clicking ✨ Generate Itinerary consumes a generation.
• What doesn't count: chatting with Biubiu, asking questions, browsing the library, using the subway map — all unlimited.
• When it resets: on the 1st of every month. Your count goes back to 5 automatically — nothing to do.

What happens when you reach zero?

You can still chat freely. The Generate button will point you to Premium — or you can wait for the monthly reset.

• Where to check: your account page shows remaining generations under AI usage.