To prevent abuse there is a cap on how many AI requests you can make in a day, regardless of credits:
- Free: 40 requests a day
- Plus: 400 requests a day
- Pro: 1000 requests a day
A complete set uses at most about fifteen requests and each photo read uses one, so with normal use you won't reach it. If you go over, the AI features come back the next day; your credits stay untouched.