Which model does the Azure OpenAI Service primarily enhance?

The Azure OpenAI Service primarily enhances the GPT model for natural language tasks. GPT, which stands for Generative Pre-trained Transformer, is designed to generate human-like text based on the input it receives. This capability makes it particularly valuable for applications such as chatbots, content creation, language translation, and more.

Using Azure OpenAI Service with GPT allows developers to leverage the model's cutting-edge natural language understanding and generation capabilities. The integration of GPT within Azure facilitates scalability, allowing users to easily build and deploy applications that require sophisticated language processing.

The other models mentioned serve different purposes and are not the focus of the Azure OpenAI Service. For instance, DALL-E specializes in generating images from textual descriptions, BERT is primarily used for understanding context in text and is often applied for tasks like sentiment analysis but is unrelated to the generative capabilities of GPT, and SARIMA is a statistical model used for analyzing and forecasting time series data, which is outside the scope of natural language processing. Thus, the enhancement of GPT stands out as the key offering of the Azure OpenAI Service.