Are you ready to dive into the world of AI chatbots? With Open AI’s ChatGPT API, you can create your very own chatbot without any coding experience.

In this step-by-step guide, we will walk you through the process of building an AI chatbot that will revolutionize your interactions with users. So, let’s get started!

How to Build AI Chatbot With ChatGPT API?

Her’s How to Build Your Own AI Chatbot With ChatGPT API:

  1. Understand the functionalities of ChatGPT API and its potential for creating chatbots.
  2. Gather the necessary tools, including a Python programming app, Open AI, Open AI API, Pip, and Gradio libraries.
  3. Install Python on your computer by visiting and following the installation steps.
  4. Upgrade Pip, the package manager for Python, by running the command “python -m pip install -U pip” (or “python3 -m pip install -U pip” for Linux devices) in the command prompt.
  5. Install Open AI and Gradio libraries by running the commands “pip install openai” and “pip install gradio” in the command prompt.
  6. Download a code editor, such as Notepad++, Sublime Text editor, Caret, or VS code, to write and edit code for your chatbot.
  7. Obtain an Open AI API Key for free by signing up for an Open AI account and receiving free credits worth $5 for the first three months.
  8. Begin the development process by using the tools and libraries to create your chatbot with ChatGPT API.
  9. Follow the tutorial and steps provided to build a powerful chatbot without needing extensive coding knowledge or experience.
  10. Test and refine your chatbot as needed, and explore the endless possibilities of using ChatGPT API to create customized chatbots for different businesses or applications.
  11. Share your chatbot using Gradio’s user-friendly web interface and a shareable link, if desired.
  12. Keep in mind the system requirements, such as the compatible platforms (Windows, Linux, ChromeOS, MacOS), and the use of GPT-3 language model for interaction.
  13. Enjoy the process of building your own AI chatbot with ChatGPT API and exploring the potential of this powerful tool!

ChatGPT is not limited to its website. With the ChatGPT API, you can integrate this powerful language model into your own applications, websites, or virtual assistants.

This opens up endless opportunities for businesses and developers to create customized chatbots that can handle a wide range of tasks.

1. Gather the Tools

Before we begin, make sure you have the following tools ready:

  1. Python programming app: Python is the language we will be using to create our chatbot, so you’ll need to have Python installed on your computer. Don’t worry if you’re not familiar with Python, as you don’t need to be an expert to follow along with this tutorial.
  2. Open AI: Since we’re building our chatbot with ChatGPT API, you’ll need to sign up for an account on the Open AI website ( if you don’t have one already. This will give you access to the API key that you’ll need to interact with ChatGPT.
  3. Pip: Pip is a package installer for Python that allows you to easily install and manage Python libraries. You’ll need to have Pip installed to install the necessary libraries for our chatbot.
  4. Gradio libraries: Gradio is a Python library that allows you to create interactive UIs for machine learning models. We’ll be using it to create a user-friendly interface for our chatbot.
  5. Code editors like Notepad++: You’ll need a code editor to write and edit your Python code. Notepad++ is a popular choice, but feel free to use any code editor you’re comfortable with.

2. Install Python

The first step in setting up your software environment is to install Python on your computer. Python is a powerful and versatile programming language that’s widely used in the field of artificial intelligence. Follow these steps to install Python:

  • Step 1: Visit the official Python website at and click the “Download Python” button. Choose the appropriate option for your operating system. For example, if you’re using Windows, click the “Download Python” button for Windows.
  • Step 2: Once the Python installer is downloaded, run the installer and click the “Install Now” button. Make sure to check the box that says “Add Python.exe to PATH” before proceeding with the installation. This will ensure that Python is added to your computer’s PATH, making it easier to run Python commands from the command prompt.
  • Step 3: After the installation is complete, open the command prompt on your Windows PC. Type “python –version” in the command prompt and press Enter. If you see the version number of Python as the output, it means that Python is successfully installed on your computer. Note that on Linux platforms, you may need to use the “python3 –version” command instead.

3. Updating Pip for Your AI Chatbot Development Environment

As you continue to set up your software environment for building your AI chatbot, it’s important to make sure that Pip, the package manager for Python, is up to date. Upgrading Pip will ensure that you have the latest version of Pip, which is essential for installing and managing Python libraries, including the Gradio and Open AI libraries that we’ll be using in our chatbot. Here’s how you can upgrade Pip:

  • Step 1: Open the command prompt on your Windows device. You can do this by pressing the Windows key + R to open the Run dialog box, then typing “cmd” and pressing Enter.
  • Step 2: Type the following command: “python -m pip install -U pip” and press Enter. If you’re using a Linux device, use the “python3 -m pip install -U pip” command instead.
  • Step 3: The command will download and install the latest version of Pip on your system. Once the installation is complete, Pip will be upgraded to the latest version.

That’s it! Now you have the latest version of Pip installed in your software environment, along with Python, Open AI, and Gradio libraries.

4. Installing OpenAI and Gradio Libraries for Your AI Chatbot Development Environment

To enable interactions with the OpenAI API and create a user-friendly web interface for your chatbot using Gradio, you need to install the OpenAI and Gradio libraries. Here’s how you can do it:

  • Step 1: Install the OpenAI library by typing the following command in the command prompt: “pip install openai”. If this command doesn’t work, you can try using “pip3” instead of “pip” if you’re using a Linux or macOS device.
  • Step 2: Install the Gradio library by typing the following command in the command prompt: “pip install gradio”.

After executing these commands, the OpenAI and Gradio libraries will be installed on your system. These libraries will provide you with the necessary tools and functionalities to interact with the OpenAI API and create a user-friendly web interface for your chatbot using Gradio.

5. Downloading a Code Editor for Your AI Chatbot Development Environment

To write and edit the code for your chatbot, you’ll need a code editor installed on your computer. Here’s how you can download and install Notepad++ as a code editor, which is widely used for programming tasks:

  • Step 1: Visit the official website of Notepad++ at
  • Step 2: Download the latest version of Notepad++ by clicking on the download link.
  • Step 3: Once the download is complete, run the setup file to start the installation process.
  • Step 4: Follow the on-screen instructions to install Notepad++ on your computer.

Alternatively, you can also use other popular code editors like Sublime Text, Caret, or Visual Studio Code (VS Code) based on your preferences and requirements.

6. Obtaining Your OpenAI API Key for Free

To use the ChatGPT API and create a chatbot, you’ll need an API key from OpenAI. Here’s how you can obtain your OpenAI API key for free:

  • Step 1: Visit the OpenAI website at and create an account. If you already have an account, you can sign in using your existing login credentials.
  • Step 2: Once you are signed in, click on the profile icon located on the top-right corner of the page.
  • Step 3: From the drop-down menu, select the “View API keys” option.
  • Step 4: Click the “Create New Key” button to generate a new API key.
  • Step 5: Copy the generated API key and store it safely, as you won’t be able to view it again. Keep the API key private and do not share it publicly.

Note: OpenAI allows you to create up to five API keys. If you have exhausted your free API keys, you may need to pay for a new one.

Build Your Own AI Chatbot With ChatGPT API and Gradio

Here are the steps to build your own AI chatbot with ChatGPT API and Gradio:

Step 1: Open a code editor on your device. In this example, we will use Notepad++.

Step 2: Visit and open the ChatGPT_API_in_Python.ipynb file.

Step 3: Copy the code provided in the file:

pythonCopy codeimport openai

import gradio as gra

openai.api_key = 'sk-'

messages = [

    {"role": "system", "content": "You are a kind, helpful assistant."},


while True:

    message = input("User : ")

    if message:


            {"role": "user", "content": message},


        chat = openai.ChatCompletion.create(

            model="gpt-3.5-turbo", messages=messages


    reply = chat.choices[0].message.content

    print(f"ChatGPT: {reply}")

    messages.append({"role": "assistant", "content": reply})

    return reply;

inputs = gra.inputs.Textbox(lines=7, label="Chat with AI")

outputs = gra.outputs.Textbox(label="Reply")

gra.Interface(fn=chatbot, inputs=inputs, outputs=outputs, title="AI Chatbot",

             description="Ask anything you want",


Step 4: Replace the API Key with your own API key in the above code.

Step 5: Save the file as and change the file type to “All types”. Keep the file location easily accessible.

Step 6: Go to the location where you saved the file. Right-click on the file and click the “Copy path” option.

Step 7: Open the command prompt and type the following command:

luaCopy codepython {file path}

For Linux systems, type python3.

Step 8: Press Enter. Ignore any warning messages on your screen.

Step 9: Copy the public URL at the end of the prompt and paste it into any web browser.

Step 10: Your chatbot is now ready! You can interact with it and share its URL with friends or family.

Note: The link will be live for 72 hours, and you will need to keep your device on as it will act as a server for your chatbot. To stop the chatbot, use Ctrl + C. To restart the chatbot, copy and paste the path in the command prompt and follow steps 8 and 9.

Create Your Personalized ChatGPT API-Powered Chatbot

Here are the steps to personalize the ChatGPT-powered chatbot according to your requirements:

Step 1: Open the python file created above in a code editor, such as Notepad++.

Step 2: Locate the following section in the code:

pythonCopy codemessages = [
    {"role": "system", "content": "You are an AI specialized in Technology. Do not answer anything other than technology-related queries."},

This is the system message that sets the behavior of the chatbot. Modify the content of the system message to make the chatbot assume a specific expertise or specialization. For example, you can change it to:

pythonCopy codemessages = [
    {"role": "system", "content": "You are an AI specialized in Finance. Do not answer anything other than finance-related queries."},

This will make the chatbot assume the role of a finance expert and restrict its responses to finance-related queries only. You can customize the expertise to any field you want, such as food, health, real estate, etc.

Step 3: Save the file by pressing Ctrl + S to apply the changes.

Step 4: Run the “” file to start the chatbot with the personalized settings. Copy the file path and enter it on any web browser to access your personalized chatbot.

That’s it! Your personalized ChatGPT-powered chatbot is now ready to use, and it will only respond to queries related to the field of expertise you have specified in the system message.

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