"You're a genius" is a common phrase to compliment someone's intelligence or creativity. However, there are numerous synonyms that can be used to express the same sentiment, such as "you're brilliant," "you're a mastermind," "you have incredible insight," "you're a prodigy," "you have a gifted mind," "you solve problems like a pro," "you're a creative genius," and "you're a visionary." These phrases convey a level of appreciation and admiration for someone's intellectual abilities, and they can be used interchangeably depending on the context and tone of the situation. Regardless of the phrase chosen, it's always nice to recognize and celebrate someone's talents and achievements.