How to train AI on your writing style

Kenneth Pangan

Stanley Nicholas
Last edited January 30, 2026
Expert Verified
You can usually spot AI-generated content from a mile away, can't you? It has that distinct, slightly-too-perfect, robotic feel. While tools like ChatGPT are pretty incredible, their default writing style is often generic and a bit soulless.
For any brand, that’s a problem. Content that sounds like it was written by a bland algorithm doesn't connect with an audience, weakens your brand identity, and tanks engagement. Your content needs to sound like you.
The good news is you can actually teach an AI to adopt your specific voice and style. This guide will walk you through three different ways to do it, from simple tricks you can try in seconds to more involved techniques.
But if you're on a team that needs to create on-brand content at scale without the technical headaches, tools like the eesel AI blog writer are built to do the heavy lifting. It learns your brand voice automatically to create articles that are ready to publish. It's the same tool we used to grow our own traffic from 700 to 750,000 daily impressions in just three months.

What exactly is an AI writing style?
When we talk about a "writing style," we mean more than just telling an AI to be "friendly" or "professional." Those instructions are too vague, and the AI will just fall back on its own generic interpretation.
To really capture your voice, an AI needs to understand the specific ingredients that make your style unique. Think of it like a recipe, the final dish depends on a combination of elements, like:
- Vocabulary and word choice: Do you use specific industry terms? Do you prefer simple, everyday language? Are you a fan of analogies? The words you choose are a huge part of your brand's personality.
- Sentence structure and rhythm: What's your flow? Do you write in short, punchy sentences that get straight to the point? Or do you prefer longer, more descriptive sentences that build a narrative? The length and rhythm of your sentences create a specific reading experience.
- Formatting preferences: How you structure your content visually is also part of your style. Do you use lots of headings and subheadings? Are you a fan of bullet points or numbered lists? How do you use bolding and italics to emphasize key points?
- Point of view: Do you write from a first-person perspective ("we think," "I believe") or a more objective, third-person voice? This choice changes how your content feels to the reader in a big way.
Getting these elements right is the secret to creating content that feels authentic and keeps your brand's voice consistent across every blog post, email, and social media update. It's what makes people want to actually read what you have to say.
Three manual ways to train an AI on your writing style
Alright, let's get into the details. Here are the three most common ways to teach an AI your writing style, starting with the easiest and moving to the most complex.
Method 1: Create a style blueprint with prompting
This is the most straightforward method and a great place to start. The idea is to give the AI a few examples of your best writing, have it analyze them, and then create a "style blueprint," a short summary of your voice that you can reuse in future prompts.
How it works:
- Gather your best work: Find 3-5 high-quality pieces of your writing that really capture your brand's voice. This could be blog posts, newsletters, or even internal documents. Aim for a total of at least 1,000 words.
- Prompt for analysis: Copy and paste your text into a chatbot like ChatGPT. Then, you can use a prompt like this one suggested by a Reddit user:
Please evaluate the given text and provide a synopsis of its vocabulary, sentence structure, writing style, and tone. Next, draft a brief prompt instructing ChatGPT to write in this particular style.
Pros: It's incredibly easy for anyone to do, requires no technical skills, and is completely free.
Cons: The results can be inconsistent. You have to paste your blueprint into every new conversation, and the AI might not always follow your instructions, especially on longer pieces of content. It is a manual process that can be challenging to scale for consistent content creation.
Method 2: Use custom instructions and personalized GPTs
If you find yourself constantly pasting your style blueprint into new chats, this next method is a step up. It makes your style guide more permanent by saving it directly into the AI platform's settings.
How it works with different tools:
- Custom Instructions: Many platforms, including ChatGPT, have a "Custom Instructions" feature. Here, you can save your style blueprint so it automatically applies to all your future conversations. It’s a real time-saver, but keep in mind there’s usually a character limit (ChatGPT's is 1,500 characters). It's also worth noting that your instructions might be used by the company to improve their models.
- Custom GPTs: For even more control, you can build a specialized GPT just for your writing tasks. This feature is available to paid ChatGPT users and lets you embed your style blueprint into its core instructions. Better yet, you can upload up to 20 of your writing samples as knowledge files, giving the AI a much deeper well of context to draw from.
Pros: This is way more consistent than one-off prompting and saves you the hassle of copying and pasting your blueprint every time.
Cons: This approach is dependent on the base model's capabilities, which may sometimes revert to a default voice. It also ties your style guide to a specific platform, which could be a consideration if you wish to use different tools.
Method 3: Fine-tune a dedicated model for maximum control
Welcome to the deep end. Fine-tuning is by far the most powerful method, but it's also the most complex. It involves retraining a base AI model on a large, custom dataset of your own writing. The end result is a brand-new, specialized model that writes in your style by default.
How it works (the simplified version):
- Create a dataset: This is the most time-consuming part. You need to create a dataset of at least 50-100 high-quality examples. Each example needs to show the model the desired input ("prompt") and the ideal output ("completion") written in your style.
- Format and upload: Your dataset has to be meticulously structured in a specific file format (like .jsonl) and then uploaded to an AI platform that offers fine-tuning, such as OpenAI.
- Run the training job: You then pay to run a training job, which can take several hours. This process has both training and usage costs, so it can get expensive quickly.
Pros: This is the most effective and consistent way to perfectly replicate a writing style. The result is a durable, custom-trained model that truly understands your voice.
Cons: This approach is highly technical, time-consuming, and can be expensive. It is generally a solution for developers with specific needs, not a typical option for most content teams.
An automated solution: The eesel AI blog writer
The manual methods we just covered require some level of technical interaction, from prompt engineering to data science. They can present challenges for scaling content, and they do not address other aspects of content creation beyond the text itself.
The eesel AI blog writer offers a much smarter solution by taking a different approach. Instead of you spending hours trying to train the AI, it trains itself on your business in minutes.

How it works is incredibly simple:
- Context-Aware Research: You don't need to feed it examples or write a style guide. Just provide your website URL. eesel AI instantly scans your site to understand your products, services, customers, and existing brand voice. It uses this deep context to write naturally about your business without you having to spell everything out.
- Deeply Researched Content: The AI goes way beyond surface-level writing. It produces deeply researched drafts that are actually helpful to your readers, complete with internal links back to your existing content and external citations to credible sources.
- Automatic Asset Generation: A wall of text isn't going to rank in 2026. eesel AI automatically finds and embeds relevant YouTube videos, creates custom infographics, and pulls in social proof from real Reddit threads to create a complete, media-rich post that both readers and search engines love.
The result is a publish-ready, SEO-optimized, and perfectly on-brand blog post from a single keyword. It's a tool built for teams focused on growing organic traffic, not on conducting endless AI experiments.
Comparing different training approaches
Here’s a quick breakdown of how the different methods stack up. It becomes pretty clear why an automated approach is the best fit for businesses.
| Method | Effort Level | Cost | Consistency | Best For |
|---|---|---|---|---|
| eesel AI blog writer | Very Low | Starts with a free trial | Very High | Teams scaling on-brand SEO content |
| Prompt-Based Blueprint | Low | Free | Low | One-off creative tasks or personal experiments |
| Custom Instructions/GPTs | Medium | Included with paid plans | Medium | Individuals personalizing their chatbot experience |
| Fine-Tuning a Model | High | High (training + usage fees) | High | Developers with deep technical needs |
For a more detailed walkthrough, this video from Tiago Forte shows how he trained an AI to write in his exact voice, saving hours on every piece of content.
A video explaining how to train AI on your writing style, featuring a real-world example of creating a personalized AI writing assistant.
Final thoughts on training an AI on your writing style
Making an AI write in your voice is no longer a futuristic dream. You can use simple prompting for quick tasks, set up custom GPTs for better consistency, or dive into advanced fine-tuning for ultimate control.
But let's be real: each of the manual methods involves a balance of effort, cost, and reliability. For businesses that need to produce high-quality, on-brand content consistently, these factors are an important consideration.
The eesel AI blog writer provides a smarter path forward. It gives you the brand consistency of a fine-tuned model with the dead-simple ease of entering a single keyword.
Why not see for yourself? Try it for free and generate your first publish-ready, on-brand blog post in the next five minutes.
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Article by
Kenneth Pangan
Writer and marketer for over ten years, Kenneth Pangan splits his time between history, politics, and art with plenty of interruptions from his dogs demanding attention.



