Provider usage
Input, cached-input and output usage are recorded where returned by the provider.
Usage-based AI assistance
AI Credits
AI credits fund governed AI requests while keeping provider usage, internal charges and balances visible.
Credit reservation
Credits are reserved before a request and settled after completion.
Administrator control
Model rates, credit value, markup, output limits and user grants are configurable.
User visibility
Users can review request history, credit charges and remaining balance.
Billing principle
Usage should be measurable, understandable and capped.
Amexwrite administrators publish products and rates. Users see allowances, purchases and usage in their portal. External-provider prices can change, so configured rates must be reviewed rather than assumed.