An end boss of Armored Core VI: Fires of Rubicon. An unmanned bipedal mech developed by the Rubicon Research Institute as part of their Ibis series of C-weapons, making full use of Coral-powered system for offense, defense and utility. Outfitted with four pairs of double barrelled Coral homing launchers (2x shoulder mount and 2x wrist mount), Coral energy sword and a Coral rifle. Its manoeuvrability rivals that of CEL 240, its offensive capability rivals and possibly exceeding that of HAL 826.
Though it is developed as an unmanned C-weapon, it was piloted by Ayre in the route 'Fires of Raven', serving as her mean to fight the player character C4 621 and stop the colony ship Xylem, in the bid to save both her kins and the planet Rubicon III.
In the 'Alea Iacta Est' route, the SOL 644 is modified, for joint operation by ALLMIND and G5 Iguazu. This modified SOL 644, simply called ALLMIND , is black in appearance, and uses green pulse energy instead of Coral. It is armed with green energy swords that can transform into energy claws.
