Use ChatGPT to answer questions, write, create images, complete work, and code—all in one place. Get started for free or download the app.

Use ChatGPT to answer questions, write, create images, complete work, and code—all in one place. Get started for free or download the app.

We’ve trained a model called ChatGPT which interacts in a conversational way. The dialogue format makes it possible for ChatGPT to answer followup questions, admit its mistakes, challenge incorrect premises, and reject inappropriate requests.

ChatGPT thinks harder on complex tasks and asks relevant follow-up questions to keep work moving. Every employee can get expert-level results without switching models.

OpenAI operates the service on a freemium model. Users can interact with ChatGPT through text, audio, and image prompts. ChatGPT was quickly adopted, reaching 100 million monthly active users two months after its release and 900 million weekly active users in February 2026.

Log in or sign up to ChatGPT

Download the ChatGPT app for Windows, Mac, iPhone, and Android. Access ChatGPT Work and Codex, use voice conversations, create images, and connect your files and apps.

ChatGPT helps you learn, create, and get things done. Ask questions, explore ideas, write content, analyze information, and more with AI.

Try ChatGPT Free today and use AI to write, learn, plan, and get quick answers—at no cost.

You can now have voice conversations with ChatGPT directly from your computer, starting with Voice Mode that has been available in ChatGPT at launch, with GPT‑4o’s new audio and video capabilities coming in the future.