Specialized in close-ranged combat, with exceptional dash abilities and an experimental "berserk mode" ("B mode") only used in this variant. Obsolete, but known to have been present among YoRHa android prototypes deployed during the Pearl Harbor Descent, and among the prototypes that formed the M002 male squad.
All-purpose combat unit, a hybrid of the A and G prototype models. This type was developed by utilizing the battle data on No2 from the Pearl Harbor Descent Mission.
Focused on defensive tactics such as the use of barriers, and heavily reinforced against the Logic Virus.
Combat model specifically designed for anti-android operations. E-models are often covertly deployed and given another type designation, charged with monitoring and, if need be, eliminating androids who have violated YoRHa's policies in some way, including those at risk of or in the process of deserting, and those in unauthorized possession of classified information. E-models seem to be functionally similar to B-models regardless of their designation.
Specialized in long-range combat. Obsolete, but known to have been present among YoRHa android prototypes deployed during the Pearl Harbor Descent Mission, and among the prototypes that formed the M002 male squad.
Specialized repair unit, with additional tools both for repairing physical damage and dealing with data corruption and electronic warfare. H-models were at one point also responsible for uploading squad black box data to the Bunker, though this ability seems to have been added to Scanner models as well at some point.
Logistical model, provides intel and missions for units in the field as well as collecting and compiling command-level data for operations in the orbital stations. One Operator is assigned to each combat unit in the field. The O series are not designed for combat, and are not permitted to leave the orbital stations.
Scout unit with additional sensor capabilities and a comprehensive hacking suite for gathering data. Also charged with uploading the personality data of themselves and their companions to the Bunker to preserve it in case their body is destroyed. S models are especially unique being the only current-production male YoRHa androids, due to testing finding that male combat-focused models were stronger but poor at cooperation.