ChatGPT is your AI chatbot for everyday use. Chat with the most advanced AI to explore ideas, solve problems, and learn faster.

Nov 30, 2022 · 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, …

Nov 28, 2025 · 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...

It currently uses GPT-5.1, a generative pre-trained transformer (GPT), to generate text, speech, and images in response to user prompts. [3][4] It is credited with accelerating the AI boom, an ongoing …

May 14, 2025 · ChatGPT is built on a transformer architecture, specifically the GPT (generative pretrained transformer) family of models, ergo the name ChatGPT. It was trained on massive …

ChatGPT is the free AI chatbot for everyone. Ask anything, learn, and explore new ideas with the world’s most advanced AI chat.

Nov 24, 2025 · ChatGPT is a chatbot created by OpenAI that can process text, image, audio and video data to answer questions, solve problems and more. Here’s how it works, its use cases, how to …

Jan 31, 2024 · Starting today, you can use ChatGPT instantly, without needing to sign-up. We're rolling this out gradually, with the aim to make AI accessible to anyone curious about its capabilities. We …

Jul 24, 2025 · These special-purpose mini models allow users to apply the full power of GPT-4+ to their own specific tasks. If you've ever wanted to build your own AI, you can use ChatGPT to do it.

Oct 17, 2025 · You can try ChatGPT without an account in many regions, but signing in unlocks advanced features like saved chat history, conversation sharing, custom instructions, and higher …