The more I've actually tried using language models in my writing, the better I've gotten at it. And at the same time, the models themselves are getting better. I already find them really helpful, and that's only going to increase with time.
What Actually Works For Me
My process is pretty straightforward: I either describe a rough idea and ask for a first draft, or I'll have a conversation with a language model using voice mode about the topic I want to explore, then use the transcript as part of my initial prompt. I’ll also include lots of examples of other things I’ve written, and ask for a close match to my writing style.
From there, I give feedback on what I'm reading - I speak much faster than I type, so I use SuperWhisper to transcribe (there are many equivalent options, but I’ve already set up a hotkey for it). Then I ask for changes, read the new version, and give more feedback. Once it’s close enough, I’ll do a final manual edit/rewrite.
Just Start Writing
While I'm not going to give an exhaustive guide on using language models for writing (yet), I will offer one piece of advice: just start experimenting. Try different approaches, and pay attention to what works for you. You’ll build up intuition for how to prompt, and when to stop giving feedback and make the final edits yourself. You’ll also build up a library of examples you can use, and it really is worth giving lots of examples.
OK, I guess that was two pieces of advice.