ChatGPT is an AI language model developed by OpenAI. It is based on the GPT-3.5 architecture, which stands for “Generative Pre-trained Transformer 3.5.” GPT-3.5 is the third iteration of the GPT series, and it is designed to understand and generate human-like text based on the input it receives.

At its core, ChatGPT uses a transformer neural network architecture, which allows it to process and understand the context of language in a sophisticated way. It has been trained on an extensive dataset of diverse text from the internet, making it capable of performing a wide range of natural language processing tasks.

One of the remarkable aspects of ChatGPT is its ability to generate coherent and contextually relevant responses to various prompts and questions. It can engage in conversations, answer questions, provide explanations, write creative content, offer programming help, and more. Users interact with ChatGPT by providing text prompts and receiving text-based responses in return.

OpenAI initially deployed ChatGPT as a research preview, and it gained significant attention and feedback from users during its testing phase. The primary purpose of the research preview was to gather real-world usage data, identify limitations, and gather insights to improve the system further.