Credit amounts may now be fractional
balance_credits and credit_used in the GET /v1/usage response are now documented as number instead of integer.- Whole-credit values still serialize as whole numbers (for example
12, not12.0). - Fractional values (for example
1.75) appear only for metered products, such as the upcoming Chat API. - Existing prices are unchanged: Search costs 2 credits and Research costs 1 credit.
