OpenAI MuseNet is an artificial intelligence model developed by OpenAI that can generate music in various styles and genres. It uses deep learning techniques to analyze and understand musical patterns, allowing it to create original compositions that mimic the styles of famous composers and contemporary artists. MuseNet can produce music with multiple instruments and even combine different genres, such as classical and jazz. It is capable of generating pieces that last several minutes, making it a versatile tool for musicians and composers looking for inspiration or new ideas in their work.