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. ChatGPT has evolved substantially since then. 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. 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. Chat for free with AI models from ChatGPT, Gemini, Claude, DeepSeek and Grok in English. No registration, anonymous. 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. ChatGPT is an AI agent that you communicate with in natural language: Start with a question, an idea, rough notes, a file, or a task you need to complete. Ask ChatGPT to explain information, develop ideas, draft content, research a topic, analyze materials, or create something new.