ChatGPT is a conversational AI assistant from OpenAI. Users type or speak requests into a chat box and get answers, drafts, explanations and ideas, with tools for deeper work.

Chat - back-and-forth conversation that remembers context within a thread.
Image creation - generates images from descriptions.
File uploads - attaches photos and files for questions about them.
Deep research - longer investigations across sources.
Saved chats - signed-in users keep history and get tailored responses.

It suits students, writers, developers and professionals using AI for everyday questions and drafts. Signing up is free, with paid plans linked from the pricing page.