Digital Product

The Custom GPT Blueprint

Build AI team members that actually know your work. A step-by-step guide with the exact framework, templates and examples to create Custom GPTs that deliver consistent, quality output.

€19
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PDF guide. Instant delivery. Pay once, keep forever.

Sound familiar?

750+ professionals trained
2,000+ uses of one Custom GPT built with this method
80+ editors using the same framework
What you get

Everything you need to build

🛠

The 4-Block Framework

Goal, Instructions, Knowledge, Capabilities. The exact structure behind every Custom GPT that delivers consistent results.

📄

Fill-in Template

Copy the template, fill in the blanks, paste into ChatGPT. Your first Custom GPT in under 30 minutes.

💡

3 Ready-to-Use Examples

A LinkedIn post drafter, a meeting notes processor, and a customer email responder. Complete instructions you can use today.

✅

Common Mistakes Guide

The 5 mistakes that make Custom GPTs useless, and how to fix each one. Based on training 750+ professionals.

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The Custom GPT Blueprint

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Guus Witjes, AI Trainer

Hi, I'm Guus Witjes

AI Trainer & Builder

I lead the digital marketing team at a Dutch university. When AI tools started appearing, I did what most people do: I opened ChatGPT, typed a question, and got a generic answer. So I went deeper.

I built a Custom GPT for our team of 80+ editors to check their writing against our tone of voice guidelines. It has been used over 1,000 times. That one build saves the team hours every week, and the quality went up because the feedback is instant and consistent.

Since then, I have trained 750+ professionals to do the same thing: turn a repeated task into a solved problem. Not with complicated tools or code. With clear thinking and a simple framework.

This blueprint is that framework. The exact method I teach in my hands-on workshops, written down so you can work through it on your own.

750+ professionals trained
2,000+ uses of one GPT
80+ editors, one tool
TEDx speaker

Questions

Yes. Custom GPTs are a ChatGPT Plus feature (currently $20/month). The blueprint teaches you to get maximum value from that subscription.
The framework (Goal, Instructions, Knowledge, Capabilities) works for any AI tool. The step-by-step screenshots are for ChatGPT, but the thinking process is universal. I use the same method for Claude Projects.
About 60 minutes total. 45 minutes of thinking about your task and writing instructions, 15 minutes of actual setup in ChatGPT. The blueprint walks you through both parts.
Absolutely. No coding, no technical skills needed. If you can fill in a template and copy-paste text, you can build a Custom GPT. The blueprint is written for professionals, not developers.
A PDF guide. You get instant access after purchase. Read it on any device, keep it forever.

Stop briefing ChatGPT from scratch

Build a Custom GPT that already knows your work, your rules, and your quality standards. Brief it once, use it forever.

Get the Blueprint for €19