I use it as a smart thesaurus. "Come up with 30 synonyms for walking slowly."
(List)
"Come up with 30 more." (Here's where it gets interesting and sometimes misses the bus entirely.)
I don't even trust it for research anymore. Perplexity's quality has either gone down or prompting has become too complicated to be useful to me. So I just google.
I am scared to death of outsourcing any sort of critical thinking to a machine. That said, I've used paraphrasers before, which are also AI-based (before gen AI).
This is to make me see the same sentence in a different way. I don't write it as it's paraphrased then, but it gets me out of my little box so I can think of another way to say it.
Cheats, though. I've collected about 11 writing books full of word lists, and six dictionaries, and 3 slang dictionaries for the dystopian scenario where the internet goes down. And the paraphrasing thing, I can do that by looking at other books, and how other authors structure their sentences.
I use the "cheats" for speed alone.