Systems, methods, and apparatuses are described for automatically generating and simulating cloud infrastructure topologies. A computing device may provide a user interface displaying a cloud infrastructure topology and may receive user input indicating modifications to that topology. The computing device may generate simulation data by determining estimated resources used by each element of the modified version of the cloud infrastructure topology during simulation of the modified version of the cloud infrastructure topology. Such simulation might be determined by simulating events, probabilistically, and/or through use of a trained machine learning model. The computing device may then identify recommended changes to the modified version of the cloud infrastructure topology based on that simulation data and cause output of those recommended changes. Such recommendations might relate to moving various elements to different cloud service providers to, for example, improve stability and/or lower costs.