It was rumored that the GX1's were designed to be used for the private armies of the original investors, and that after their creation, and subsequent scrutiny by security forces and Jedi, the investors sought to erase any evidence of their involvement with the project. These financiers supposedly hired slicers to erase data in Trang Robotics computers, and assassins to eliminate those in the company who had knowledge of their complicity.
In 31 BBY, Gar-Oth, a Yahk-Tosh Lord, used a small army of GX1's to conquer Princess Lourdes' homeworld. Though the droids were able to overcome the local defenses and subdue the populace, Yoshi Raph-Elan, a Jedi Knight who had crash-landed on the planet, was able to stop Gar-Oth's plans, defeating several GX1's along the way.