The Getimian Exalted are one of the new types of Exalted introduced in Exalted Third Edition. The Getimian Exaltations were created by the titans now known as Oramus and Sacheverell in the Time Before, only for those Ancients to seal them away in horror at the implications of what they had created. Eventually, the Exaltations were discovered by the rogue First Age Sidereal Rakan Thulio, who unleashed them to empower Chosen that would aid him in his one-man war against the Loom of Fate's divine rule over destiny.
The Getimians themselves are walking paradoxes, people Fate says should not exist. They have internal pattern spiders, allowing them to use a form of alchemy to control their own fates and unleash fates they've woven into destiny's design. Their Charms tear apart the strands of the Loom of Fate, replacing what-is with what-might-have-been.
Streamlined rules for creating and playing Getimian characters are presented in Exalted: Essence. They will be described in full later in Third Edition.