ChatGPT is a generative artificial intelligence chatbot developed by OpenAI and released on November 30, 2022. It uses generative pre-trained transformers (GPTs), such as GPT-4o or o3, to generate text, speech, and images in response to user prompts. It is credited with accelerating the AI boom, an ongoing period of rapid investment in and public attention to the field of artificial intelligence (AI). OpenAI operates the service on a freemium model. By January 2023, ChatGPT had become the fastest-growing consumer software application in history, gaining over 100 million users in two months.
https://en.wikipedia.org/wiki/ChatGPT