Yes, The Platinum Card® from American Express card reports to the credit bureaus every month.
American Express reports the card’s credit limit, account balance, and payment history to all three of the major credit bureaus: Experian, TransUnion, and Equifax. American Express reports to the credit bureaus typically at the same time as your monthly billing statement.
In some cases, changes may be reflected right away in your credit report; in others, it may take more than a month to update.
The Amex Platinum will also still impact your credit score in other ways, including whether you pay your bill on time.