Azure OpenAI Service provides enterprise access to OpenAI's models (GPT-4, GPT-4o, DALL-E, Whisper) deployed within your Azure subscription. Unlike direct OpenAI API access, Azure OpenAI provides: private endpoint networking (data never leaves your VNET), content filtering (configurable safety policies), Entra ID authentication (no API keys), data processing agreements, and regional deployment (data residency compliance).
Enterprise Azure OpenAI requires: deployment management (model provisioning, PTU vs pay-as-you-go capacity), networking (private endpoints, VNET integration), security (content filtering policies, responsible AI configuration), RAG implementation (Azure AI Search vector index, embedding pipelines), and cost optimization (model selection by task complexity, caching, batching).