GD//MS-(211) Gundam "Gaia X"

The GD//MS-(211) Gundam "Gaia X" (Gaia X, Gundam GX, GX, GGX, the 10th Gaia) is the successor to the GD//MS-(-001) Gundam "Gaia" and is the tenth of complete overhauls done to the basic design of the first Gundam drawn up by Abernathy Crawford, thus the "X" in its name representing the Roman numeral for "10". It was developed by Dominion Frameworks in secrecy for use by the Crusaders during the war between Earth and the colonies of RC 215. After Murray failed to stop Blaine's artificial asteroid from falling onto Earth and the Gundam was swallowed up by the asteroid pulsing into the atmosphere, the Crusaders managed to find and salvage the core of Gundam Gaia, along with Murray, but the "Earth" Molecular Manipulation System was lost completely. Though lacking the system, the Gundam Gaia X is nonetheless an exceptionally powerful mobile suit.

It is featured in Mobile Suit Gundam: Believe in the Stars, piloted by the recovered Murray Kaido and assisted by the artificial intelligence program "GAIA". Later in the series, after the cockpit block was customized to allow for two pilots, Elise Groavel joins Murray as the Gundam's pilot.