What is Chat GPT And How Can You Use It? Chat GPT is a large language model chatbot developed by Open AI based on GPT-3.5 . It has a remarkable ability to interact in conversational dialogue form and provide responses that can appear surprisingly human . Large language models perform the task of predicting the next word in a series of words . Reinforcement Learning with Human Feedback (RLHF) is an additional layer of training that uses human feedback to help Chat GPT learn the ability to follow directions and generate responses that are satisfactory to humans. Who Built Chat GPT? Chat GPT was created by San Francisco-based artificial intelligence company Open AI . Open AI Inc. is the non-profit parent company of the for-profit Open AI LP .Open AI is famous for its well-known DALL·E, a deep-learning model that generates images from text instructions called prompts .The CEO is Sam Altman, who previously was president of Y Combinator.