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, 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 amounts of data from, ChatGPT is a generative artificial intelligence chatbot developed by OpenAI and released on November 30, 2022., ChatGPT is similar to the automated chat services found on customer service websites, as people can ask it questions or request clarification to ChatGPT's replies. The GPT stands for "Generative Pre-trained Transformer," which refers to how ChatGPT processes requests and formulates responses., ChatGPT vs. Claude: I've Tested Them Both, and One's Clearly More Powerful GPT-5 Is Supposed to Be Smarter, But It Just Makes Me Want to Switch Chatbots, 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 may use what you provide to ChatGPT to improve our models for everyone..