Abstract: Methods and systems for dynamically determining completion status in a human intelligence system are disclosed. Requestors can specify completion criteria data for tasks that include one or more completion rules that define what constitutes sufficient responses for the task to be considered completed. The completion criteria data can be specified in a unique data structure independent of the data structure for task data or response data. Rather, than immediately sending tasks to a predefined number of human workers specified by the requestors, such as a predefined maximum number of human workers, the completion criteria data can be analyzed to determine a minimum number of human workers necessary to meet the completion criteria. The task can then be sent to the minimum number of human workers for response.