The Budget tab shows a live breakdown by category: images, video, voice, music, VFX, upscaling and render.
Cost per finished minute is a first-class number, because it is the one that tells you whether a project is viable before you finish it.
Optimize Cost proposes cheaper routings with an estimated quality impact per shot group, so you can take the savings that do not matter and refuse the ones that do.
Every generation button in the app shows a pre-generation estimate. Nothing spends credits without telling you the number first.