1.3 – Train A GPT To Write Like You Lesson

Lesson Overview

Entrepreneurs often need to produce a significant amount of written content, from emails to marketing materials. Using a generic AI can lead to content that feels impersonal or off-brand. This lesson shows you how to train a general-purpose copywriter GPT within ChatGPT so it reliably writes text in your own style.

You’ll go beyond handing over a single writing sample—the process involves careful prompt engineering and back-and-forth refinement. This customization is important because AI models need clear direction and a strong example in order to capture nuances like your tone, sentence structure, or preferred reading level. You’ll also see how to keep your GPT private, use clear naming conventions, and adjust settings specifically for writing tasks.

For anyone managing their brand voice or producing large volumes of written content, having a trained GPT copywriter means less repetitive prompting and more consistency across communication channels. Whether you’re looking to create website copy, social media posts, or client proposals, this lesson gives you the foundation for scalable, quality writing that still sounds like you.

Who This Is For

This lesson is helpful if you want your AI-generated writing to sound unique, match your brand, and reduce editing time. It’s especially suited for:

• Entrepreneurs seeking consistent brand voice across channels
• Content creators wanting to automate everyday writing tasks
• Marketers building drafts for campaigns, websites, or product copy
• Educators preparing materials or scripts in a familiar tone
• Small business owners aiming to save time on communication

Where This Fits in a Workflow

Custom GPTs become part of your daily content production process. After creating and fine-tuning your general copywriter GPT, you’ll use it whenever you need quick, on-brand drafts. For example, when finishing a blog article or launching a website update, you simply open your trained GPT, enter a prompt, and get content that closely matches your established voice.

If you often switch between writing sales emails one day and website updates the next, this general copywriter GPT can handle the draft for each, giving you a reliable starting point every time. As you move through future lessons, you’ll set up even more specialized GPTs for particular tasks, building a toolkit tailored to your workflow.

Technical & Workflow Benefits

Traditionally, users spend time manually editing AI outputs or re-prompting ChatGPT to reach a desired voice. This approach creates friction and slows down content creation. By training a dedicated GPT copywriter, you skip the repetitive steps and achieve your preferred tone automatically.

For instance, before this, you might paste your text into ChatGPT and labor through several adjustments—tweaking tone, fixing phrases, and clarifying reading level. With a custom GPT trained in your style, the first draft is much closer to what you’d write yourself. This means less editing, more consistency across channels, and faster turnaround for client or internal deadlines. Whether working solo or managing a small team, this process improves the speed and polish of your output.

Practice Exercise

Get hands-on by preparing a short writing sample from your own work—this could be a recent email, a blog post, or a product description.

1. Access ChatGPT’s 'Create a GPT' feature in the Explorer tab.
2. Provide your writing sample when prompted, just as described in the lesson.
3. After set-up, ask your new GPT to draft a paragraph on a topic you know well. Compare this output to your own writing—does it feel natural and in your tone?

Reflect: Which aspects of your voice or style is the GPT capturing well, and where does it need more adjustment? Consider using the prompts from the lesson to help refine it and note the results.

Course Context Recap

This lesson is an early step in setting up your customized GPT toolkit for business writing. Prior lessons explained the basics of writing style adaptation and prompt techniques. Now, you’ve started building your own general-purpose copywriter GPT. Coming up, you’ll create more specialized versions—like an email-focused GPT—to handle even more specific tasks. Continue through the course to expand your set of custom-trained tools, and unlock faster, more authentic writing for every part of your business.