In short: 'No'. Tasks in ArcGIS Pro are designed for interactive workflows. A step in a task can call a geoprocessing tool \ model \ script. Tasks and Geoprocessing tools compliment each other. Unlike GP models, a step in a task can also call any command \ Add-in. Tasks are interactive, where Geoprocessing and Add-ins can be used for automation Tasks are designed to improve efficiency, promote best practices and guide new users. To read more about Tasks use this Link. Amir
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