How to Use AI to Write a Newsletter (Prompts + Example)

It’s Thursday afternoon. The newsletter goes out tomorrow at 9, you have four half-ideas in a notes file, and every time you open a blank draft you end up answering Slack instead. You know AI can write. You also know the last AI email you received read like a brochure, and you deleted it.

Here’s the short answer. To use AI to write a newsletter, don’t ask it to “write a newsletter about X”. Give it your raw material first (notes, links, a customer question, what happened this month), plus two of your past issues so it can copy your voice, and ask for a draft in a fixed structure: one main story, two short items, one clear ask. Then you edit for 15 minutes: check every fact, cut the fluff, and add one line only you could write. AI does the first 80 percent. You do the part that makes people open the next one.

Want one practical AI workflow like this every week, free?

Can AI write a newsletter people actually read?

Yes, if you feed it. No, if you don’t.

A language model with no input writes the average of every newsletter it has seen. That average is polite, generic and forgettable. Readers notice. In usability research on newsletters, Nielsen Norman Group found that people now call even newsletters they signed up for “spam” when the content feels random, impersonal or full of promotional hype. Most of them don’t unsubscribe. They just stop opening.

So the risk with AI isn’t that it writes badly. It’s that it writes blandly, and bland is exactly what gets ignored. The fix is simple: the AI writes the sentences, but the substance (the news, the opinion, the example from your week) comes from you.

Google takes the same view for content in general. Its guidance on AI-generated content says it rewards helpful, original content however it is produced. The tool doesn’t matter. Whether the result is useful does.

Step 1: Collect your raw material (10 minutes, all month)

The best AI newsletter drafts start long before you open ChatGPT. Keep one running note, in your phone or a doc, and drop things into it as they happen:

• A question a client or customer asked you this month.
• A link you read and had an opinion about.
• A small win or a mistake at work, with one number in it (“we cut proposal time from 3 hours to 1”).
• Anything new: a product, a price change, an event date.
• One sentence on what you want readers to do after reading.

Messy is fine. “client asked if AI can do invoices, said yes but showed n8n, she was surprised it took 20 min” is perfect input. That one line has a real question, a real tool and a real reaction. AI can turn it into a strong paragraph. It can’t invent it.

If your raw material is a long report or a meeting transcript, shrink it first. Our guide on summarizing long documents with ChatGPT shows how to pull the three points worth sharing out of 40 pages.

Step 2: Teach the AI your voice once

This is the step most people skip, and it’s why their AI newsletter sounds like everyone else’s.

Paste in two or three of your past issues (or, if you have none yet, a few emails you wrote that you liked) and ask the AI to describe your style. Anthropic’s own prompting best practices say clear instructions plus a few well-chosen examples are one of the most reliable ways to get the output you want. Your old issues are those examples.

Below are 3 newsletters I wrote. Describe my writing style in 8 short bullet points: sentence length, tone, how I open, how I close, words I use often, words I never use, how I use humor, how long each section is.

Then write a "style guide" paragraph I can paste at the top of future prompts so you write like me.

[paste newsletter 1]
[paste newsletter 2]
[paste newsletter 3]

Read the bullets. Correct anything that’s wrong (“I never use exclamation marks”, “I always end with a question”). Then save the style guide somewhere you can reuse it:

• Claude: create a Project for your newsletter and put the style guide and your past issues in it. Claude’s Help Center explains how Projects keep files and custom instructions together, so every new chat in that project starts with them.
• Gemini: make a Gem with the style guide as its instructions. Google’s help page on using Gems in Gemini Apps covers the setup.
• ChatGPT: a Project or a custom GPT does the same job. Or just keep the style guide in a note and paste it at the top of each prompt. Low-tech, works everywhere.

You do this once. Every issue after that starts in your voice instead of the machine’s.

Step 3: Ask for a draft in a fixed structure

Newsletters that people keep reading usually have a shape readers can rely on. Pick yours and tell the AI to stick to it. A format that works well for professional newsletters:

1. Opening line: one sentence about something real from your week.
2. Main story: 150 to 250 words on one idea, with one concrete example.
3. Two quick items: a link with your one-line take, a tip, or a short update.
4. One ask: reply, book a call, read a post, register. Only one.

Here is the prompt. Swap the brackets for your own material:

[paste your style guide]

Write this month's newsletter for [who reads it, e.g. "owners of small accounting firms"].

Use ONLY the raw material below. Do not add facts, numbers, quotes or links that are not in it. If something is missing, write [CHECK] instead of guessing.

Structure:
* Opening: 1 sentence, about something real from the notes
* Main story: 150 to 250 words, one idea, one concrete example
* Two quick items: 2 to 3 sentences each
* One call to action: [what you want them to do]
* Sign off as [your name]

Also give me 5 subject lines under 50 characters and a 1-sentence preview text.

Raw material:
[paste your notes]

Two lines in that prompt do most of the work. “Use only the raw material” keeps the draft about your actual month. “Write [CHECK] instead of guessing” gives the model permission not to make things up, which is one of the techniques Anthropic lists in its guide to reducing hallucinations.

What a draft looks like (a real example)

Say you run a small bookkeeping practice and your notes say:

* 3 clients asked about the new VAT deadline
* tried AI to sort receipts for client M, saved maybe 2 hrs, still checked every line
* office closed 24 Dec to 2 Jan
* want people to book their year-end review before 15 Dec

A good AI draft of the main story will open with the VAT question three clients asked, explain what changed in plain words (with a [CHECK] where the exact date should go, because the notes don’t contain it), then use the receipt experiment as the example: what you tried, the two hours saved, and why you still checked every line. The quick items become the holiday closing and the year-end review. The ask is the review booking.

Nothing in that draft is invented. It just turned four messy lines into something readable in under a minute. That is the job.

Step 4: Edit like the human you are (15 minutes)

Never send the first draft. Go through it with this checklist:

• Every [CHECK]: fill it in from a real source, or delete the sentence.
• Every fact and number: does it match your notes? AI sometimes rounds, merges or “improves” numbers.
• Every link: open it. If the AI wrote a link you didn’t give it, remove it.
• The fluff test: delete any sentence that would fit in anyone’s newsletter. “Exciting times ahead” goes. “We closed 40 year-end files in November, a record for us” stays.
• Add one line only you could write: an opinion, a small story, a reaction from a client. This is the line people reply to.
• Read it on your phone: short paragraphs, nothing wider than the screen, the ask easy to spot.

If a section sounds stiff, paste just that paragraph back and ask: “Rewrite this the way I’d say it to a client over coffee. Keep every fact.” Our page on making an email sound more professional has the reverse prompts, for when a draft is too casual.

Subject lines and preview text

The subject line decides whether any of your work gets read. Ask the AI for five or more options, then pick with two rules:

• It must be true. Clickbait that the email doesn’t deliver on is exactly what readers call spam. In the US it can also break the law: the CAN-SPAM Act (15 U.S.C. 7704) prohibits deceptive subject lines in commercial email.
• It should name the main story. “Your year-end review: book before 15 Dec” beats “November update” every time, because the reader knows what’s inside.

Use the preview text (the grey line after the subject in most inboxes) to add the second reason to open, not to repeat the subject.

Which AI is best for writing a newsletter?

Honestly, the tool matters less than the input. ChatGPT, Claude and Gemini all write a solid newsletter draft when you give them real notes and a style guide. A few practical differences:

• Claude is a good fit if you want to keep a big folder of past issues and reference material in a Project.
• Gemini is handy if your notes and drafts already live in Google Docs and Gmail.
• ChatGPT is the most common choice and works fine with the prompts above.
• Your email platform’s built-in AI (most newsletter tools now have one) is convenient for subject lines and small rewrites inside the editor. For the main draft, a full chat assistant with your style guide usually gives you more control.

If you’re still choosing a general assistant, our overview of an AI writing assistant for busy professionals compares them for everyday work writing.

Turn one issue into more content

Once the newsletter is done, you have the hardest part of a week’s content already written. Ask the AI:

From the newsletter below, write:
* 1 LinkedIn post (under 150 words) based on the main story
* 3 short social posts, one per idea
Keep my voice. No hashtags unless I add them. No facts that are not in the newsletter.

[paste final newsletter]

For more on this, see our ChatGPT prompts for social media managers. And if the newsletter announces something big, like a launch or a new hire, the same raw material can feed a press release written with AI.

Automate the boring part (optional)

When the writing routine works, you can automate the collection step. A simple setup: forward any email or link worth sharing to one label or folder during the month. On the day you write, export or copy that folder into your notes and run the prompt. If you want to go further, our list of email automation examples shows how filters, rules and tools like Zapier can do the sorting for you.

Keep the human steps human, though. Automating the gathering saves you time. Automating the sending of an unchecked AI draft to your whole list is how a wrong date reaches 2,000 people.

Mistakes that make an AI newsletter obvious

• No raw material. “Write a newsletter about productivity” gets you the average of the internet.
• Too many topics. Five stories of equal weight means none of them land. One main story, two small ones.
• The same opening every month. “I hope this finds you well” in issue after issue tells readers nobody is behind it. Change the first line every time, from something real.
• Several calls to action. Read this, book that, follow us, reply. Pick one.
• Pasting private data. Don’t put client names, contracts or personal details into a chat tool your company hasn’t approved. Anonymise first (“client M”, “a firm in Utrecht”).
• Forgetting the basics of email rules. Marketing newsletters need consent and an easy way to unsubscribe. In the UK, the ICO’s guide to electronic mail marketing explains the consent rules. Your newsletter platform handles most of this, but the list and the content are your responsibility, not the AI’s.

FAQ

Is it okay to use AI to write my newsletter?

Yes. Readers care whether it’s useful and sounds like you. Use AI for structure and first drafts, keep the facts, opinions and examples yours, and check everything before you send.

How long should a newsletter be?

Long enough for one main idea, done well. For most professional newsletters that’s somewhere around 300 to 600 words. If your readers open it on their phone between meetings, shorter usually wins.

Can I use ChatGPT to write a newsletter for free?

Yes, the free versions of ChatGPT, Claude and Gemini can all draft a newsletter with the prompts on this page. Paid plans mostly add higher limits and features like Projects, which make saving your style guide easier.

How do I stop my AI newsletter from sounding like AI?

Three things: give it your past issues as examples, give it real notes instead of a topic, and add one line yourself that only you could write. Then cut every sentence that would fit in anyone else’s newsletter.

Should I tell readers I use AI?

That’s your call and depends on your field. What matters most is that every fact is checked and the opinions are genuinely yours. If you’d be uncomfortable explaining how it was written, that’s a sign to put more of yourself in it.

A good newsletter issue often has two or three ideas that work as short posts too. If LinkedIn is where your readers are, here is how to use AI to write LinkedIn posts that sound like you.

Some newsletter ideas deserve more room than one issue. When a topic keeps growing, turn it into a full article with our guide on how to use AI to write a blog post that still sounds like you.

If you want a weekly rhythm that turns one idea into a newsletter, social posts and a short script, not just one format at a time, see how to use AI for content creation. It covers the voice file, the main piece, and how to split that piece across the week.

Your next step

Open your notes app today and start the running list. Next week, run the style prompt on your last three emails. The week after, you’ll write your newsletter in 30 minutes instead of an afternoon.

We share one workflow like this every week, built for people who want to use AI at work without becoming engineers. Start on our home page, or sign up right here: