Back to Blog
April 2, 2024

How to Create Custom GPTs in 5 Minutes (OpenAI GPTs Tutorial for Beginners)

How to Create Custom GPTs in 5 Minutes (OpenAI GPTs Tutorial for Beginners)

Table of Contents

1. Introduction

2. Creating a Custom GPT

3. Configuring the GPT

4. Adding Knowledge Base

5. Setting Up Custom Actions

6. Testing the Custom Functionality

7. Saving and Accessing the GPT

8. Conclusion

Introduction

In this article, we will explore how to create a powerful custom GPT using knowledge and a custom action component within OpenAI's new GPTs. We will provide step-by-step instructions and a template to help you create your own custom GPT functionality easily. This tutorial will cover the process from start to finish, allowing you to build a GPT tailored to your specific needs.

Creating a Custom GPT

To begin, navigate to the homepage of Chat GPT and click on the "Create" button to start creating your own GPT. We will then move on to the configuration section, where we can customize our GPT according to our requirements.

Configuring the GPT

In the configuration section, we can name our GPT and provide a description. For example, let's call it "Smith's Solar Sales Assistant" and describe it as a sales rep assistant for a solar company named Smith's Solar. This is a fictional company created for the purpose of this tutorial.

Next, we need to write the instructions for our GPT. We can paste in a prompt that outlines the role of the assistant, which is to help junior sales reps with learning the company's standard operating procedures. Additionally, the assistant can provide the size of a client's roof, which will be sent to a custom action component called the "Solar Calculator." This custom action will return valuable estimation data to help customers make informed decisions.

Adding Knowledge Base

To enhance the knowledge base of our GPT, we can upload a document containing information on Smith's Solar sales processes and training. This document, titled "Solar Sales Rep Training," will be available in our resource hub for reference. You can access this document by signing up and following the link provided in the description.

Setting Up Custom Actions

Now comes the exciting part: adding custom actions to our GPT. Custom actions allow the sales reps to not only ask questions from the knowledge base but also perform specific functions. In this tutorial, we will focus on a solar calculator tool. Sales reps can gather information from clients, such as their current power bill and roof size, and send it to the GPT. The GPT will process this data using an API and provide valuable estimation insights that can be shared with the client.

To enable this custom functionality, we have already built a custom action called "Replet." You can access the code for this custom action in our resource hub by following the link provided in the description. Simply click the "Fork" button to create your own copy of the code. This code handles the logic and calculations required for the solar estimations.

Testing the Custom Functionality

With our knowledge base document added and the custom action set up, we are ready to test our GPT. We can interact with it by asking questions and requesting custom actions. For example, we can ask about available offers to close a sale, and the GPT will refer to the knowledge base to provide relevant information. We can also trigger the custom action by providing details such as roof size and monthly power bill. The GPT will send this information to the Replet custom action, which will process it and return valuable insights and calculations.

Saving and Accessing the GPT

Once we have finished building our GPT, we can save it by clicking the "Save" button. We can choose the visibility settings, such as keeping it private or sharing it with others. After saving, we can access our GPT within the Chat GPT window and interact with it using the instructions and custom actions we have set up.

Conclusion

In this article, we have explored the process of creating a custom GPT using knowledge and custom actions. We have covered the configuration, knowledge base setup, custom action implementation, testing, and saving of the GPT. By following these steps, you can create a powerful GPT tailored to your specific needs. The possibilities are endless, and this technology opens up new opportunities for businesses to provide valuable services. If you want to learn more and stay updated on building businesses with GPTs, make sure to join our Telegram group mentioned in the description.

---

**Highlights:**

- Learn how to create a custom GPT using knowledge and custom actions

- Configure your GPT with a specific name and description

- Upload a knowledge base document to enhance the GPT's capabilities

- Set up custom actions to perform specific functions

- Test the custom functionality by interacting with the GPT

- Save and access your GPT for future use

---

**FAQ:**

Q: How can I access the resource hub and the documents mentioned?

A: You can access the resource hub and the documents by signing up and following the link provided in the description.

Q: Can I modify the custom action code provided?

A: Yes, you can modify the custom action code according to your specific requirements. However, the provided code is ready to use and does not require extensive modifications.

Q: Is the GPT capable of handling other custom actions?

A: Yes, the GPT can be extended to handle various custom actions based on your needs. The provided tutorial focuses on a solar calculator tool as an example.

Q: Can I share my custom GPT with others?

A: Yes, you can choose the visibility settings when saving your GPT. You can keep it private or share it with others.

Q: How can I stay updated on building businesses with GPTs?

A: Join our Telegram group mentioned in the description to receive daily updates, tips, and tricks on building businesses with GPTs.

---

**Resources:**

- [Smith's Solar Sales Assistant](https://www.voc.ai/product/ai-chatbot)

Related Articles

Voice-of-customer
How to optimize product page based on amazon review analysis

Real customer feedback is the fastest way to find out what buyers actually want. Hidden inside those paragraphs are the answers to everything: what they hate, what they love, and how they are actually using the product.Many sellers make the mistake of just chasing a high number of reviews. But the s

Jan 28, 2026
Read more
Voice-of-customer
The Ultimate List of Amazon Seller Resources to Bookmark in 2026

As we settle into 2026, e-commerce has fully cemented itself as the dominant force in global retail. But with this growth comes a massive influx of new sellers, sophisticated AI competitors, and constantly shifting algorithms. This means the landscape changes fast—sometimes overnight.The bad news: A

Jan 28, 2026
Read more
Voice-of-customer
The 5 Best Amazon Seller Tools You Need This Year

Tools like Jungle Scout and Helium 10 revolutionized the industry by giving sellers access to powerful sales data. They remain essential for validating market demand and checking revenue.But having access to the same data as everyone else creates a new challenge: How do you differentiate your produc

Jan 27, 2026
Read more
VOC AI Inc. 160 E Tasman Drive Suite 202 San Jose, CA, 95134 Copyright © 2026 VOC AI Inc.All Rights Reserved. Terms & Conditions Privacy Policy
This website uses cookies
VOC AI uses cookies to ensure the website works properly, to store some information about your preferences, devices, and past actions. This data is aggregated or statistical, which means that we will not be able to identify you individually. You can find more details about the cookies we use and how to withdraw consent in our Privacy Policy.
We use Google Analytics to improve user experience on our website. By continuing to use our site, you consent to the use of cookies and data collection by Google Analytics.
Are you happy to accept these cookies?
Accept all cookies
Reject all cookies