Bot cannot say pronounce AI Correctly!

Hey Team …
Im having trouble with getting my bot to pronouce AI Correctly…

Model chosen : GPT-4o
Voice chosen: Onyx (Deep Young Masculine voice)

I tried multiple options under Add Custom Pronunciation such as.. “A-EYE”, “A-I”, “EH-EYE”. it always says something along the lines of Eh-Jay.

Hoping someone can help with this..
Thanks!