ChatGPT is a generative artificial intelligence chatbot developed by OpenAI. It was released in November 2022. It uses generative pre-trained transformers (GPTs), such as GPT-5.4, to generate text, speech, and images in response to user prompts.
Introducing ChatGPT for iOS: 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 the new image generator.