**OpenAI Whisper** is an automatic speech recognition (ASR) system developed by OpenAI, designed to transcribe spoken language into text. It uses deep learning techniques, specifically an encoder-decoder Transformer architecture, and is trained on a massive dataset of multilingual and multitask supervised data from the internet. Whisper can handle various accents, vocabularies, and topics with high accuracy, making it versatile for applications such as transcription services, voice assistants, and accessibility tools.