Microsoft's AI-powered cloud search service with semantic ranking, vector search, and hybrid capabilities for building intelligent search experiences and RAG applications. Formerly known as Azure Cognitive Search.
An e-commerce site uses Azure AI Search to help customers find products using natural language like 'waterproof hiking boots for winter' instead of exact keyword matching.
All provide managed search for applications. Azure AI Search emphasizes enterprise search with semantic ranking, vector search, and tight integration with Azure AI for RAG. Amazon OpenSearch Service and OCI Search with OpenSearch are managed OpenSearch (Elasticsearch-like) engines commonly used for log/search workloads and can support vector search depending on engine/version and configuration. Vertex AI Search focuses on Google-quality search experiences for websites/apps with strong relevance and generative/AI-assisted experiences.