Why is everyone talking about ChatGPT? Skip to main content

Why is everyone talking about ChatGPT?

 

 Well, a simple answer to that question is that ChatGPT is so cool!!! Why cool! It is because it can engage in conversational interaction just like humans, which is what artificial intelligence models should be like, mimicking human behavior as much as possible. With that said, let’s start by first getting to know ChatGPT. What is it? How was it trained? And How can we use it?

 What is ChatGPT?

 Conversational AI refers to the use of artificial intelligence to enable computers to have natural, human-like conversations with people. This technology has become increasingly popular in recent years, as it allows businesses to automate customer service and enables people to interact with computers in a more natural and intuitive way. Some of the key components of conversational AI include natural language processing (NLP), which allows computers to understand and interpret human language, and machine learning, which enables the computer to improve its performance over time. Overall, conversational AI has the potential to revolutionize the way we interact with computers and technology, making it more efficient and user-friendly.

ChatGPT is the most recent and state-of-the-art type of conversational AI that is the result of the most sophisticated and revolutionary OpenAI AI language models like GPT-3, which has made AI-generated text and conversational AI increasingly realistic, and often hard to tell apart from something written by a human. ChatGPT is the newest chatbot from OpenAI and it demonstrated that chatbots can interact in a very conversational way just like humans do.

The GPT-3 model is used by the ground-breaking chatbot, ChatGPT, to create plausible dialogue from a brief writing prompt. This gives it the ability to create stories, tackle challenging problems, clarify ideas, and—given the appropriate prompt.

 How can we use ChatGPT?

As discussed previously, OpenAI, the creator of ChatGPT has released it publicly on their website. In order to use it to get some answers or conversations, you just need to sign up to OpenAI and start playing around with chatGPT.

 How was ChatGPT trained?

As per the OpenAI, the chatGPT was trained using Reinforcement Learning from Human Feedback (RLHF), with a few minor variations in the data collection arrangement. An initial model was also trained first using supervised fine-tuning by having human AI trainers act as both the user and the AI assistant in chats. The trainers were provided with access to sample writing recommendations to assist them in creating their responses.

In order to build a reward model for reinforcement learning, comparison data were needed, which included at least two model replies ordered by quality. The chatbot interactions that AI trainers conducted with it were used to get this data. A model-written statement was chosen at random, sampled several potential conclusions, and AI trainers were asked to rank them. Finally, a Proximal Policy Optimization which is a new state of art class reinforcement learning algorithm, by OpenAI, was used to adjust the model using these reward models as it is much simpler to implement and tune than other methods. This process was iterated upon several times as seen in the Figure below:




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