Google's NotebookLM AI is introducing an interactive mode that allows users to converse with AI podcast hosts during Audio Overviews. This feature, currently in beta, enhances user engagement with personalized responses. Additionally, Google is launching a subscription tier, NotebookLM Plus, which offers expanded features for businesses and organizations. The company is also unveiling "Agentspace," a platform for custom AI agents that provide conversational assistance and integrate with various enterprise applications.