Both "AI" lyrics sucked donkey balls.
I'm guessing many (lazy) students etc use Chat GPT to try to help with essay writing and their course work.
Beyond that I wouldn't see why anyone would trust it with anything.
And I know for a fact Open AI uses non relational indexing.
So far much of AI is totally useless anyway how it's implemented when you don't (want to) follow companies' "orders".
If you write the lyrics yourself and just use the AI to fix some loose ends, it can be useful.
I got surprised by the harmony, melody, rhythm and catching chorus delivered by Suno AI. Felt inspired by the songs' vibe in a way I can't feel inspired by modern songs people create nowadays.
Since you are talking about 80's songs, you might would like to check:
https://www.youtube.com/watch?v=kZidtDpxRok
ChatGPT is really limited, though. Asked for obscure, unknown 80's hits suggestions, but it keeps showing the popular ones.
