You can certainly nudge it directionally, but it has its own style. And verbal tics etc.

So it simply cannot keep documentation or a codebase in the same style, and it cannot write <information> in <style>.

With 3.5 Turbo I used to give it bulleted information and paragraphs of what I wanted it to sound like and it'd replicate that style, then I'd edit the factual details it got wrong.

Now the situation has completely reversed! It can extract the data itself, but I have to write the stuff by hand. Humorously, it will do bulletpoints for me, and I write the thing.