What is the name of the platform created by Nvidia for building and deploying real-time conversational models?

The platform created by Nvidia specifically for building and deploying real-time conversational AI models is called Riva. This platform is designed to serve applications such as speech recognition, natural language understanding, and text-to-speech, making it particularly suitable for conversational AI tasks. Riva leverages advanced deep learning technologies to provide high-quality responses and interactions in real-time, which is essential for applications that require quick and responsive communication.

DeepStream, on the other hand, is focused primarily on video analytics and is not tailored for conversational models. TensorRT is a high-performance deep learning inference library that optimizes the deployment of deep learning models, but it does not directly address the specific needs of conversational AI development. Nvidia GeForce Now is a cloud gaming service that allows users to stream games, which is not relevant to conversational AI model development. Therefore, Riva stands out as the correct answer as it is explicitly designed for the requirements and functionalities associated with real-time conversational models.