ChatGPT

ChatGPT is a conversational artificial intelligence assistant built by OpenAI on its GPT family of large language models. It understands natural-language prompts and responds with written answers, helping people draft text, summarize documents, brainstorm ideas, write and debug code, translate languages, and work through research questions. Later versions add the ability to analyze images, interpret files, browse the web, and generate pictures.

The assistant serves a broad audience, from students and writers to engineers and business teams who want quick help with everyday knowledge tasks. Its main strength is flexibility: a single chat interface handles very different requests, remembers context within a conversation, and adapts its tone to the user. Custom instructions and saved memory let it tailor responses over time.

ChatGPT offers a free tier alongside paid Plus, Pro, and business plans that unlock more capable models, higher limits, and extra tools. It is available through the web, mobile apps, and a developer API.