Credits enable you to use PhotoRoom API for full-resolution cutouts in high quality.
Removing the background from 1 image requires 1 credit. Preview images (<0.25 megapixels) require 0.25 credits.
Subscriptions include a monthly budget of credits, that you can use within that month (or roll over to the next month as long as you stay subscribed). Pay-as-you-go credits are valid for up to 2 years after the purchase.