NotebookLM has launched a new interface that enhances user interaction with its features, including Audio Overviews, where users can engage with hosts using their voice. The redesign organizes the tool into three main panels for improved usability. Additionally, a premium subscription, NotebookLM Plus, has been introduced, offering benefits like increased Audio Overviews and enhanced privacy for organizations. This rollout aims to facilitate smarter studying and decision-making for users globally.