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.

Improving GPT‑5.6 Sol in ChatGPT—and expanding access to GPT-5.6 Luna for free users Product 5 min read

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.

We are beginning to roll out new voice and image capabilities in ChatGPT. They offer a new, more intuitive type of interface by allowing you to have a voice conversation or show ChatGPT what you’re talking about.