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.

GPTs in ChatGPT Learn what GPTs are in ChatGPT, what they can include, who can use and build them, and how they interact with privacy, workspaces, and the GPT Store.

Log in or sign up to ChatGPT

Utilisez ChatGPT pour répondre aux questions, rédiger, créer des images, accomplir des tâches et coder, le tout au même endroit. Démarrez gratuitement ou téléchargez l’application.

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.

Talk with ChatGPT in real time when speaking is easier than typing. Use voice to brainstorm, practice, learn, or keep moving while you’re away from your keyboard.