When was ChatGPT first released?

ChatGPT was first released in November 2022 by OpenAI. It is based on the GPT (Generative Pre-trained Transformer) architecture, which has undergone various versions and improvements over time, with its predecessors being GPT and GPT-2, released in 2018 and 2019 respectively. ChatGPT integrates the capabilities of these language models into a conversational format, enhancing user interaction through more coherent and contextually relevant responses. The model quickly gained popularity due to its ability to engage in human-like conversation across diverse topics.