ChatGPT, created by OpenAI, is a sophisticated AI chatbot that produces text replies resembling human responses, depending on what users input. Fueled by extensive language models such as GPT-3.5 and GPT-4, it provides functionalities in writing, summarization, coding, idea generation, translation, tutoring, among others. ChatGPT caters to both informal chats and professional applications, assisting people and companies in simplifying communication, generating content, providing customer support, conducting research, and enhancing productivity. It encompasses functionalities such as tailored GPTs, memory, online browsing (available to Plus users), and code analysis. ChatGPT is a prominent conversational AI tool, thanks to its ongoing updates and broad integrations.