To write a letter with ChatGPT, describe who it's for, what you want to say, and the tone you want, in one plain-English sentence. A complete draft appears in seconds; you change a few words so it sounds like you, and it's done. That's how you write letters with ChatGPT: it does the blank page, you do the voice.
The blank page is the real enemy. You know what you want to say to the insurance company; it's the first sentence that won't come. That's exactly the part ChatGPT is best at.
An example you can try right now
Paste this into ChatGPT and change the details to yours:
Write a polite but firm letter to my health insurance company asking them to reconsider the denied claim for my new glasses. Mention that my plan covers vision care and ask for a written explanation if they deny it again.
Seconds later you have a structured, courteous letter. Read it aloud; wherever a word doesn't sound like you, change it. You can open the tool at chatgpt.com, and if you're brand new to it, start with ChatGPT for Beginners.
It's not just formal letters
The same trick works for the warm ones: a birthday note for a grandchild, a condolence message you can't find words for, a thank-you to a neighbor. Give it the person, the occasion, and one true detail, and shape what comes back. The details make it yours.
- A reply to an official notice: paste the notice, ask what it means and for a draft reply.
- A dispute over a bill: state the facts and ask for a firm, polite letter.
- A message to the family: name, occasion, one detail, and the tone you want.
The habit that makes it stick
One letter is a trick; the habit is independence. The course AI for Real Life turns this into practice: you write real letters about your real life, with templates you keep, at your own pace. And a note on care: leave account numbers and Social Security numbers out of your drafts; add sensitive details to the final letter yourself. The skill of deciding what to share is part of what we practice, and checking suspicious messages has its own guide in How to Spot a Scam Text.