古: Ancient, long-standing. The character is simple and sincere, conveying a sense of being cherished and respected by all. It is also used in given names and surnames.
凯: Triumphant song, a victorious return. It metaphorically signifies exceptional ability leading to certain success.
Meaning: The name 'Gu Kai' has a harmonious rhythm and a sense of historical depth with 'Gu', while 'Kai' symbolizes victory and success.