How to Build an AI Chatbot Using the ChatGPT API

In the current digital era, chatbots have gained popularity as a way of automating interactions with customers and users. From responding to frequently asked queries to making personalised recommendations, they are capable of handling a wide range of jobs. Chatbots are now more sophisticated, conversational, and human-like in their interactions because to advances in artificial intelligence (AI) and natural language processing (NLP).

An AI system called ChatGPT, created by OpenAI, can produce responses to text-based input that resemble those of a human. You can incorporate this AI model into your chatbot and give your users a more customized and interesting experience by using ChatGPT API. We’ll look at how to use the ChatGPT API to create an AI chatbot in this article.

Install OpenAI and Gradio Libraries

Step 1: Install the OpenAI library

• Install Python and pip (the Python package manager) on your system, if necessary. If not, you can get Python from the official website and install it. (https://www.python.org/downloads/) and pip is also included.
• Open a terminal or command prompt.
• Run the following command to install the OpenAI library using pip:

pip install openai

Step 2: Install Gradio

• You can now install Gradio, which enables you to quickly create a user-friendly web interface for your AI chatbot, after installing the OpenAI framework.
• Run the following command to install Gradio using pip in the terminal or command prompt:

pip install gradio

Create API Key

To create an API key, follow the steps given below. Currently, creating an API key in Open AI is not free for users.

Step 1: Visit the OpenAI website at https://openai.com

Step 2: Click on the “Get Started” or “Sign up” button for the plan you selected. You will be redirected to the sign-up page.

Step 3: Include your name, email address, billing information, and any other information that may be required. To complete the sign-up procedure and make the payment for your chosen plan, simply follow the on-screen instructions.

Step 4: An API key will be provided to you by OpenAI once your payment has been confirmed. This API key is a special identification number that enables you to utilize the OpenAI API in your programmes.

Step 5: According to the OpenAI website, you can interact with the OpenAI services and authenticate your API calls using the API key. To protect your account and data, be sure to keep your API key secure and adhere to standard practises for securing API keys.

Build Your Own AI Chatbot With ChatGPT API and Gradio

We will be using the most recent and potent model that powers GPT-3.5, OpenAI’s “gpt-3.5-turbo” model, to deploy the AI chatbot. In comparison to earlier models, this model has been trained through September 2021 and offers greater reactivity and the capacity to remember conversation context. In addition, it is less expensive than the Davinci model.

We will make use of Gradio, a platform that enables the building of straightforward online user interfaces for AI applications, for the user interface. This web interface will be readily available both locally and online, giving consumers a practical way to communicate with the chatbot and get responses from the potent gpt-3.5-turbo model.

• First make sure to import OpenAI and Gradio in Python

import openai
import gradio as gr

The openai package is used for interacting with OpenAI’s API, and the gradio package is used for creating the web interface for the AI chatbot.

• Replace your API key

openai.api_key = "Your API key"

• OpenAI Chat

def openai_chat(prompt):
    completions = openai.Completion.create(
        engine="text-davinci-003",
        prompt=prompt,
        max_tokens=1024,
        n=1,
        temperature=0.5,
    )

    message = completions.choices[0].text
    return message.strip()

• Gradio Interface Function

def chatbot(input, history=[]):
    output = openai_chat(input)
    history.append((input, output))
    return history, history

• Launch Interface

gr.Interface(fn = chatbot,
             inputs = ["text",'state'],
             outputs = ["chatbot",'state']).launch(debug = True)

• Make sure to replace the “Your API key” text with your own API key generated above and save your file name as file.py
• Open the Terminal, navigate to the directory where your file is present and run the below command.

python "file.py"

• At the bottom you will get a local and public URL. Now, copy the local URL and paste it into the web browser.
• And that is how you build your own AI chatbot with the ChatGPT API. Your ChatGPT-powered AI chatbot is live.

FAQs for Creating Chatbot using ChatGPT

This article is to help you build an AI chatbot using the ChatGPT API. We trust that it has been helpful to you. Please feel free to share your thoughts and feedback in the comment section below.