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.

Introducing ChatGPT for Android: OpenAI’s latest advancements at your fingertips. This official app is free, syncs your history across devices, and brings you the latest from OpenAI, including...

Ask ChatGPT to explain information, develop ideas, draft content, research a topic, analyze materials, or create something new. Add the context and tools it needs, such as files, web search, projects, or plugins.

OpenAI Platform ... OpenAI Platform

ChatGPT is free to use, and can now be accessed before creating an account at chatgpt.com. Simply enter your prompt in the text box to get started. For general questions about ChatGPT, please refer to our ChatGPT commonly asked questions.

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.