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How to Define a Style with ChatGPT to Write a Newsletter

ByNina Clapperton

Everyone is all about a newsletter, and I’m here for it!

All bloggers and business owners should have an email newsletter where they can connect with their audience on a more personal level, and be free of the algorithm variations of social media and SEO.

But maintaining a newsletter is a lot of work.

That’s where AI comes in! With this quick set up, you’ll be able to get ChatGPT to write newsletters that actually sound like you and are formatted in your own style.

No more weird built-in templates – whoever trained ChatGPT had a very specific newsletter style that I’ve never seen anyone else use successfully. Instead, you’ll get a custom co-writer who can help you craft newsletters on autopilot.

And don’t worry, I’ll give you all the prompts too!

This is specifically for ChatGPT, because it’s my favourite AI writer. But it’ll work for any chatbot AI.

Step 1: Write a Newsletter

Before you start working with AI in any capacity, you need to create the output yourself at least once.

It’s how you’ll learn to create and identify great content, rather than trusting that whatever the AI did is good enough.

For example, ChatGPT will tell you that a great Instagram caption is something like “Love the beach 🏝️”.

…no it’s not.

So your first step is to write 1 email newsletter yourself. In fact, I’d recommend writing 3.

This will help you define your tone and style for yourself so you know the way you want to communicate with your audience. I also recommend sending those 3 newsletters and seeing which one your audience responds to best. That’ll help us guide ChatGPT for the best results.

⭐️ If you’ve never written a newsletter before and need some help, I recommend checking out Liz Wilcox’s Email Marketing Membership. For just $9 a month, you’ll get a Mad Libs template for a newsletter to send each week. It’ll help you learn what makes a great newsletter.

Step 2: Define Your Style

Screenshot of a conversation with ChatGPT defining 'Nina's Style' of writing, highlighting its conversational tone, direct address, and humor. It reads: "User Hey ChatGPT, I am going to provide you with a piece of content that you are going to define as "Nina's Style". Please note the tone, structure, and style but ignore the content itself. Here is the content: AI Writer Showdown 🤖💥 Hey [FIRST NAME GOES HERE], In the last 18 months I've bought over 120 AI tools. And my accountant, who also does my bookkeeping, has called me about 50 times about these purchases. If he could, I think he'd take my credit card away. But jokes on you Carl(*not his real name), I run my business MUAH HAHA! Ok, but let's be real. I wasn't buying these tools just for fun. I wanted to trial them to help my community, like you, find the best AI tools for all their needs. Here are a couple reviews of the best ones I've found so far: ​ Jasper.ai Review​ ​Koala AI Writer Review​ ​Reword AI Writer Review​ ​Keysearch AI Writer​ ​28 Best AI Writers I Found​ Which One Click AI Writer is Best? TLDR;; ChatGPT is my favourite AI writer by FAR! Jasper used to be great, but a recent update has really taken it downhill. And one click AI writers just don’t have the customization to be actually helpful. My second favourite is Reword - an AI trained on your website that writes with you, and suggests stats to include in your content. Ultimately, most chatbot AIs are just ChatGPT wrapped in a different robe. And they usually cost far more."

Now we need to train ChatGPT to write like you.

That’s why we need the newsletter, as an example.

Here’s the prompt you’re going to use:

“Hey ChatGPT, I am going to provide you with a piece of content that you are going to define as “[name]’s Style”. Please note the tone, structure, and style but ignore the content itself. Here is the content: [paste newsletter example]”

The prompt works by asking ChatGPT to read you existing piece of content, learn the tone and style that you use to write, and having it save that information for later.

Continuation of the ChatGPT conversation, focusing on the personal and engaging writing approach of "Nina's Style." It reads: "Nina's style, as demonstrated in the content provided, exhibits several distinct characteristics that define its tone, structure, and approach. Here's a breakdown: Conversational and Personal Tone: The style is very conversational, engaging the reader as if in a one-on-one dialogue. It uses informal language and humor ("jokes on you Carl"), making it feel more like a chat with a friend rather than a formal sales pitch. This approach helps in building a connection with the audience. Direct Address and Relatability: By using phrases like "Hey [FIRST NAME GOES HERE]" and sharing personal anecdotes ("In the last 18 months I've bought over 120 AI tools"), the style feels personal and tailored to the reader. It addresses the audience directly, which can increase engagement and make the message more relatable. Use of Humor: The style incorporates humor ("But jokes on you Carl"), which makes the content more enjoyable to read and can help keep the reader's attention. This approach is effective in making technical or dry topics more accessible and engaging."

The prompt usually results in the AI defining your style. It may say something like “Nina’s Style is characterized by a friendly, relaxed tone that is like chatting with a close friend.” Or it may give something more extensive, like the bullet point text in the image above.

If you disagree with it’s assessment of your style, tell it that. You can correct ChatGPT and say “No, [name]’s Style is [insert adjectives/descriptions]”. Or you can try feeding it a different example newsletter.

If your chosen sample is too short, it may not get enough information, so you may do better giving it 3 samples of newsletter content.

Now, this prompt is going to copy the format and style pretty similarly. So if you are going from a list email to an in depth review email, it’ll be harder for the prompt to adapt.

For example, if one email has bolded headers and your new one doesn’t, ChatGPT will try to add bolded headers to copy the first email. You can specify that you want the style altered slightly if this is the case, or provide a new sample newsletter to base it off of.

I typically define the style for the exact type of email I plan to send. So I’d have a sales sequence style, an affiliate email style, and an informational email style (see how that’s 3 newsletters again? Hint hint!).

Step 3: Write in Your Style

Mock newsletter example text demonstrating "Nina's Style" of writing, engagingly discussing AI blogging tools with humor and direct reader engagement. It reads: "Subject: Unlock Your Blogging Superpowers 🚀✍️ Hey there, Super Blogger! In the whirlwind world of blogging, where the right words can catapult you to stardom, I've been on a covert mission just for you. Picture this: over the past year, I've been like a kid in a candy store, but instead of sweets, I've been gobbling up AI tools. Yes, my virtual shopping cart overflowed with over 100 AI wonders designed to make our blogging lives a breeze. And believe me, my accountant? Let's just say, we've had more heart-to-hearts than I'd like to admit. He's this close to instituting a "No Buy" list just for me. Sorry, not sorry, because guess what? My blogging empire waits for no one, and neither does yours! So, why the deep dive into the AI abyss? Simple. To arm you, my fearless blogging comrade, with the ultimate tools that'll have your words dancing off the screen and into the hearts of your readers. Without further ado, let's dive into the crème de la crème of AI for bloggers: ChatGPT: The crown jewel! If blogging is your kingdom, consider ChatGPT your trusty knight, ready to joust with writer's block and emerge victorious. Whether it's crafting captivating intros or generating ideas that stick, ChatGPT is the secret sauce to your blogging success. Writesonic: Ever dreamt of an AI that whispers sweet nothings in the form of blog outlines and draft posts? Enter Writesonic. It's like having a brainstorming buddy who's always on, always ready to roll up its digital sleeves and dive into your next big idea."

Now that you’re happy with your defined style in ChatGPT, it’s time to write your newsletter!

The prompt is pretty simple:

“Please use [Name]’s Style to write an email about [topic. Give specific instructions for anything that should be included, like certain facts/figures or different tips to highlight].”

ChatGPT will then come up with a subject line (I typically ignore these. I have another prompt for subject lines I use otherwise), and the body of the email.

There you have it! you should have a newsletter that is 90% done.

I always recommend going in to add any final edits and jazz it up a bit with your personality.

Yes, there’s no penalization for using pure AI in an email, but I think your audience deserves a bit more of your attention.

So spend the minute per email making sure it sounds like you and is helpful for your audience.

You can see an older version of this process in action here before I added in the prompt to exclude it from using the content of the sample:

What to Do if It Doesn’t Sound Right

If the output was nothing like your style, you can remind ChatGPT:

“Please remember to use [Name]’s Style as defined above.”

I’ve only had to do this once or twice, usually after a ChatGPT update where the system is having some memory gaps.

If for some reason, the style sounds completely off, you can rewrite the email with ChatGPT by having a conversation. Once you’re done, ask ChatGPT this prompt:

“I love that email! What prompt would I need to give you to replicate that email’s tone and style, but not the specific content?”

ChatGPT is the best prompt maker there is, because it knows exactly what it needs to say to itself to give the desired output.

This is a great prompt then build in after you’ve defined your style for when you’re asking the AI to write your email.

Create a Custom Newsletter GPT

If you’re like me, you’re lazy af.

I don’t want to have to re-define my style every single time I want to write, or erase old newsletter copy to reuse the style from previous chats.

Instead, you can create a custom GPT.

To do this, you need the paid ChatGPT plan.

Create a custom GPT, and train it on your style just like we did above. You will put the prompts we discussed above inside the training area. You can even upload multiple past newsletters as examples, or define multiple styles such as “Nina’s Review Style” and “Nina’s Listicle Style”.

Then you’ll have a private GPT you can skip straight to step 3 with and get it to write flawless newsletters each time!

I have so many custom GPTs, I’ve lost count! I use them for everything because they save so much time.

Conclusion

If you have an online business, you should be sending newsletters.

Now with ChatGPT, you have no excuse not to!

I’ve been able to create newsletters for all 4 of my blogs in 1 day thanks to my custom GPTs built on these prompts, all based on my specific style. It’s so cool how different each one can be based on the style I use for that website.

If you want even more helpful prompts to work with ChatGPT to write blog posts, create digital products and courses, write actually good social media captions, and more, check out my ChatGPT Blogging Blueprint course!

You’ll get my step-by-step strategies for creating content with ChatGPT and a 350+ prompt library to automate everything in your business. And there’s a full training on creating your own custom GPTs so you won’t need to copy and paste prompts every day.

👉 Get the ChatGPT Blogging Blueprint today!

Read More About AI and Content Creation

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Nina Clapperton is the founder of She Knows SEO.

She started blogging in 2018 and spent years doing everything “right” while earning $0. Then she stopped guessing and learned how search actually works. She rebuilt her travel site around audience intent and structure and grew to 50,000 sessions in 6 months. Within a year, the blog was bringing in $30,000 months and later crossed 243,000 pageviews.

She took the same audience first SEO approach and built her education business into multiple $100,000 months.

Now Nina teaches bloggers and online business owners how to build search powered businesses grounded in strong positioning, clear structure, and monetisation that actually supports their audience. She covers traditional SEO and AI driven search without the tech bro noise, and she’s known for explaining complex strategy with analogies you won’t forget.

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