Ever since its launch in December 2022, ChatGPT has become a household name on the internet. It has 1.8 billion visitors per month and continues to reach new heights with each passing month. So what exactly is this ChatGPT phenomenon? To find all the answers, we have compiled a detailed description of what is ChatGPT, who developed it, what are its features and more.
What is ChatGPT and how you can use it
ChatGPT is an AI (Artificial Intelligence) powered chatbot developed by a company called OpenAI. It's basically a website where you can have a chat with an AI model. These AI models are also known as LLM (Large Language Model). As the name suggests, "chat" refers to the conversational functionality and GPT stands for Generative Pre-trained Transformer, which is a type of LLM. We will come to GPT in more detail later.
Currently, ChatGPT lets you chat with two AI models – GPT-3.5 and GPT-4. Both of these LLM models were developed in-house by OpenAI, and are not open source. GPT-3.5 is free and available for anyone to use while GPT-4 is only available to paying users (those who subscribe to ChatGPT Plus). Both models are highly conversational and understand context as well, but GPT-4 is currently the most advanced and capable LLM in the world right now.
Talking about the models in brief, GPT-3.5 is trained on 175 billion parameters while GPT-4 is said to be trained on a whopping 1 trillion parameters, making it incredibly capable. On the other hand, Google's PaLM 2 AI is trained on ~540 billion parameters, making it one of the largest LLMs but still smaller than GPT-4. Additionally, GPT-3.5 has a maximum context length of 4096 tokens, while GPT-4 can go all the way up to 32,768 tokens. Context length is basically how much information a model can process and produce.
