Githyanki:
+2 dex, +2 Con, -2 Wis
Medium-sized
Speed 30 feet
Psionics: 3/day daze (DC9), mage hand. 3rd level or higher githyanki can cast blur 3/day. 6th level or higher githyanki can cast dimension door 3/day. 9th level or higher githyanki can cast telekineses (DC 14) 3/day and plane shift (DC 16) 1/day.
Spell Resistace (Sp) equal to class level +5
Automatic languages: Githyanki
Bonus languages: Common, Infernal, Draconic, Undercommon
Favored Class Fighter
LA +2
Githzerai:
+6 dex, -2 int, +2 wis
Medium-sized
Speed 30 feet
Darkvision 60 feet
Psionics (Sp): 3/day daze (DC9), feather fall, shatter (DC 11). 11th level or higher Githzerai can use plane shift (DC 16) 1/day.
Inertial Armor (Sp): +4 armor bonus to AC while conscious.
Spell Resistance (Sp) equal to 5 + class level.
Automatic Languages: Githzerai
Bonus Languages: Common, Slaad, Undercommon
Favored Class Monk
LA +2