How To Build Your Own AI Chatbot With ChatGPT API?

Building your own AI Chatbot with the Open AI Chat GPT app is an exciting endeavour that enables you to create interactive and intelligent conversational agents. By leveraging OpenAI’s powerful language model, you can develop chatbots that understand and respond to user inputs naturally and engagingly. 

Access to the ChatGPT API lets you easily integrate state-of-the-art conversational AI capabilities into your applications. You can set up your development environment, make API requests, and handle conversation flow by learning to obtain API access. 

This will help you unleash the potential of the ChatGPT OpenAI app model to create personalised and dynamic chatbot experiences. 

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Build Your Own Chatbot With ChatGPT API

Building your chatbot with the ChatGPT API offers a wide range of possibilities for creating interactive conversational agents. Follow these steps to build your own chatbot with the ChatGPT API:

  • Obtain API access: Sign up for the OpenAI API and get your API key to access the ChatGPT API.
  • Set up your development environment: Choose a programming language and install the necessary dependencies and tools. Python is commonly used for this purpose.
  • Make API requests: In your preferred programming language, you can send HTTP requests to the ChatGPT API endpoint and include your API key in the request headers to authenticate your access.
  • Structure the conversation: Send messages in the conversation format, alternating between user inputs and model responses. Start with a system message to set the chatbot’s behaviour.
  • Process API responses: Receive and process the API response to extract the chatbot’s reply and any other relevant information, such as confidence scores.
  • Handle conversation flow: Maintain the state of the conversation in your application and manage the back-and-forth interaction between the user and the chatbot.
  • Implement additional features: Enhance your chatbot’s capabilities by incorporating natural language understanding (NLU) for intent recognition, entity extraction, or context management, if required.
  • Test and iterate: Provide different inputs to test your chatbot and evaluate its responses thoroughly. Keep repeating your implementation to improve its performance and user experience.

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Things To Remember Before You Build an AI Chatbot

Before you build an AI chatbot, you must take note of a few essential things. Proceed with building your AI chatbot and start implementing its functionality and user interface as desired after following the given steps:

Install Python

Python is a popular programming language for building chatbots. Make sure you have Python installed on your system. You can download Python from the official Python website and follow the installation instructions for your operating system.

Upgrade Pip

Pip is the package installer for Python that allows you to install external libraries and dependencies easily. To ensure you have the latest version of Pip, open your command prompt or terminal and run the following command:

pip install --upgrade pip

Install OpenAI and Gradio Libraries

The OpenAI library provides access to the ChatGPT API, enabling you to interact with the AI model. Install the OpenAI library by running the following command:

pip install Open AI

Additionally, if you want to create a user interface for your chatbot, you can install the Gradio library. Gradio simplifies the process of building interactive interfaces for machine learning models. Install Gradio by running:

pip install gradio

Download a Code Editor

A code editor or integrated development environment (IDE) is essential for writing and managing your chatbot code. Several options include Visual Studio Code, PyCharm, Sublime Text, and Atom. Choose the code editor that best suits your preferences, download it from the respective website, and follow the installation instructions.

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Get the OpenAI API Key

To obtain an OpenAI API key, you can follow the steps described below:

  • Visit the OpenAI website at https://www.Open
  • If you already have an OpenAI account, sign in to your existing account, and if you don’t, create a new one by signing up on the website with the required details.
  • After logging in, access the OpenAI API section or dashboard.
  • Review the documentation, terms of use, and other relevant information OpenAI provides.
  • Follow the instructions and guidelines provided by OpenAI to apply for access to the API.
  • You may need to provide additional information or details about your intended use case for the API.
  • After submitting your application, wait for OpenAI’s response. They will review your application and provide further instructions if necessary.
  • If your application is approved, you will receive an API key or instructions on how to generate one.
  • Keep your API key secure and follow OpenAI’s guidelines on properly using it.

Build Your Own AI Chatbot With ChatGPT API and Gradio

Follow these steps to build your own AI chatbot with the ChatGPT API and Gradio:

  • Set up your development environment: Install Python and upgrade Pip to the latest version.
  • Install required OpenAI and Gradio libraries: Install the OpenAI and Gradio libraries by running the following command pip install Open AI gradio.
  • Obtain your OpenAI API key: Sign up for the OpenAI API and obtain your API key by following the instructions provided by OpenAI.
  • Import necessary libraries: In your Python script or notebook, import the required libraries:
import Open AI
import gradio as gr


  • Set up OpenAI API: Set your OpenAI API key using the following code:-
Open AI.api_key = 'YOUR_API_KEY'


  • Define the chatbot function: Create a function that takes user input and makes API calls to the ChatGPT API. The function should return the chatbot’s response.
def chatbot(input_text):
    response = Open AI.Completion.create(
    return response.choices[0].text.strip()

  • Set up the user interface with Gradio: Define the inputs and outputs of your chatbot using Gradio’s Interface class:
iface = gr.Interface(
    inputs=gr.inputs.Textbox(lines=3, label="User Input"),

  • Launch the chatbot interface: Start the chatbot interface using Gradio’s launch() function
  • Test and interact with your chatbot: Open the chatbot interface in your browser and enter user inputs to interact with your chatbot.

Create Your Personalised ChatGPT API-Powered Chatbot

To create your personalised ChatGPT API chatbot, you can follow this guide:

  • Set up your development environment, install the OpenAI library and obtain your key. Then, import the required libraries and set up your OpenAI key. 
  • Create a function that takes user input and makes API calls to the ChatGPT API. The function should return the chatbot’s response.
def chatbot(input_text):
    response = openai.Completion.create(
    return response.choices[0].text.strip()

  • Use the chatbot function to interact with your chatbot. You can take user inputs and provide them as prompts to get the chatbot’s responses. For instance:
user_input = input("User: ")
bot_response = chatbot(user_input)
print("Chatbot:", bot_response)

  • Customise and enhance your chatbot:
  • Experiment with different prompt styles, temperature values, and other parameters in the API call to modify the chatbot’s behaviour.
  • Implement additional features like context management, intent recognition, or entity extraction to enhance the functionality of your chatbot.


Building a personalised AI chatbot with the ChatGPT API opens up possibilities for creating interactive and engaging conversational agents. With the power of OpenAI’s state-of-the-art language model and the flexibility of the API, you can create personalised and dynamic chatbot experiences. 

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Frequently Asked Questions

Is the ChatGPT pricing reasonable?

The ChatGPT price of the subscription is quite reasonable. ChatGPT Plus is available for 20 USD per month.

What is ChatGPT API call?

A ChatGPT API call is a request made to the OpenAI API using the ChatGPT model to generate responses for a given conversation or prompt.

Can ChatGPT API be used for free?

No, the ChatGPT API is not free and has a separate cost.

Is there an OpenAI ChatGPT app available for mobile users?

OpenAI recently launched the ChatGPT app in May 2023 for iOS users. The app allows iOS users to sync their history across all devices. However, the app is only available for iOS users in the US, with plans to launch the app globally for both iOS and Android users.

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