Given that in both cases, the monies were paid in response to work being done for you, and were not paid in any form such as a stipend or subsidy, the total amount is non-employee compensation. By comparison, if the two individuals were full-time employees of yours and you were to prepare Form W-2 for each, the total amount would be reported in Box 1 of the W-2 as wages or salary.
Bonuses are paid as "additional compensation" relative to the employment.