Explanation:

The Azure OpenAI Service provides access to advanced Generative Pre-trained Transformer (GPT) models developed by OpenAI, such as GPT-3, GPT-3.5, and GPT-4. These models are capable of performing a wide range of natural language processing (NLP) and generative AI tasks - including text completion, summarization, translation, question answering, content creation, and code generation.
According to the Microsoft Azure AI Fundamentals (AI-900) study guide and Microsoft Learn documentation for Azure OpenAI, this managed service allows developers to deploy and integrate GPT-based models within their own applications using REST APIs or the Azure SDK. The service handles scalability, performance, and infrastructure automatically, meaning users do not need to manage servers or computational resources manually.
Option review:
* Supports the deployment of GPT-based models - # Correct. Azure OpenAI is specifically designed for deploying and operationalizing GPT models and similar transformer-based architectures.
* Provides capabilities exclusively for vision-related tasks - # Incorrect. Vision tasks (like image classification or object detection) are part of Azure AI Vision.
* Provides capabilities exclusively for speech-related tasks - # Incorrect. Speech processing (speech-to- text, text-to-speech, translation) belongs to Azure AI Speech Services, not Azure OpenAI.
* Requires manual infrastructure management for scalability - # Incorrect. Azure OpenAI is a fully managed service; scalability and performance are handled automatically by Azure.
Therefore, the correct completion of the sentence is:
"Azure OpenAI Service supports the deployment of GPT-based models."