I’ve definitely seen this too! How ✨ became the unofficial AI emoji:

In the relatively short history of emoji, sparkles have been used to express excitement and magic, said Jane Solomon, the senior emoji lexicographer at the emoji reference site Emojipedia. Branding new AI products with the ✨ emoji suggests that these tools are exciting and magical, which might encourage more people to test out the technology. “It can seem like magic if you don’t understand how it works,” Solomon said.