Is AI 'creativity' just advanced pattern matching, or something genuinely new?

I've been experimenting with various generative AI tools for art and writing, and while the outputs are often impressive, I constantly wonder if it's truly 'creative' or simply an incredibly sophisticated remix of existing human-created data. What are your thoughts on where the line is, or if there even is one, regarding AI's capacity for genuine innovation versus highly advanced mimicry? Really keen to hear diverse perspectives on this.