You can direct the AI to respond in a different style. While that will change its syntax and word choice to some extent, you still feel like you're reading something genric. I think the reason for that is chatgpt can only relate words to words. It basically pastiches together a bunch of phrases that statistically correlate. But this means it is not really capable of original or fresh turns of phrase. A human writer first thinks of ideas, experiences, or images and then tries to find the words to express it. The AI can only pastiche phrases and change the wording like a student who plagiarizes but uses a thesaurus to change some words or rearranges some sentences to make the copying less obvious.

I had chatgpt write me a scene where a man with robotic tentacles fought a man with enhanced reflexes and strength in a gladiatorial arena. I had it do it again and again in various styles: of Chuck Palahniuk, Mark Twain, Charles Dickens, Dr. Seuss. And yes, asking for different styles changed some of the wording and syntax. But no matter the style, every sentence, every sentence, EVERY SENTENCE, comprised common or unoriginal phrases. They fought with "fierce intensity." The tentacles "twisted and turned." The sweat gleamed on their tired bodies. Just unoriginal phrase after unoriginal phrase.

To be fair, a good deal of human writing is stock phrases. But if I had to guess, about 50% of a great writers' phrasing is original, 10-20% for an average writer, and 0% for a word sequencing algorithm.

My professors always told me to avoid cliches and common phrases. To produce original writing, you must strive for the precise words or metaphors to describe your ideas. A common phrase or cliche will merely approximate it, or it indicates that your ideas are either fuzzy or trite.