The RX-78GP01-Fb Gundam "Zephyranthes" Full Burnern is the upgraded space-use version of the RX-78GP01 Gundam "Zephyranthes". Introduced in the anime OVA series Mobile Suit Gundam 0083: Stardust Memory, it is piloted by Kou Uraki.

The RX-78GP01 Gundam "Zephyranthes" was designed to operate in both Earth and Space by using the appropriate Core Fighter and although the space-use unit was ready, the suit was unfortunately wrecked before it could be fitted on. The damaged GP01 was recovered and the engineers of Anaheim Electronics gave it a massive overhaul while repairing it, creating the RX-78GP01-Fb Gundam "Zephyranthes" Full Burnern, which is designed for space combat. The renovation process was completed in two days, with operational testing carried out at Anaheim Electronics's Livermore factory.

Its armor is more streamlined for better mobility in space, and thrusters are mounted in the chest, shoulders and legs. The air-intakes on the chest are replaced with reverse thrusters, with the covers expanding during use. The shoulder armor now contains shoulder vernier pods, and added thrusters are attached to the back of the legs and the soles. Propellant tanks are built into the shins to further extend the suit's operating time. The backpack is equipped with built-in generators and also has the most noticeable addition: the two Universal Boost Pods. The Universal Boost Pods allow the Full Burnern to have superior acceleration and mobility when compared to other units at that time. As a result, the pilot has to contend with high G-forces due to overwhelming acceleration.