Which of these is the best definition of "Generative AI"?

The best definition of "Generative AI" is indeed centered on its ability to create and produce high-quality content, including text, images, and audio. This technology leverages machine learning models, often trained on large datasets, to understand patterns and generate new examples that resemble the input data. Generative AI can be used in various applications, from art generation to writing assistance, and includes models like GPT (for text) and GANs (for images).

While other options touch on aspects of technology related to AI, they do not encapsulate the essence of what makes generative AI unique. A web search, for instance, focuses on retrieving existing information rather than creating new content. Various web-based applications might involve simple text generation, but they do not represent the full range or capability of generative AI. Similarly, the description of AI mapping from an input to an output addresses a broader spectrum of machine learning applications, lacking specificity regarding the generative aspect of content creation. Thus, option B accurately captures the defining characteristic of generative AI.