AWS has introduced vector search in several of its managed database services, including OpenSearch, Bedrock, MemoryDB, Neptune, and Amazon Q, making it a comprehensive platform for vector search solutions.

Google Vertex AI offers managed vector search capabilities as part of its AI platform, supporting hybrid and semantic search for text, image, and other embeddings.

Azure AI Search provides vector search capabilities as a managed service, supporting approximate KNN, hybrid search, and integration with other Azure AI tools.

Zilliz Cloud is a fully managed vector database service powered by Milvus, offering hassle-free deployment, scalability, and high performance for vector search applications.

Cloudflare Vectorize is a managed vector database/indexing service integrated with Cloudflare Workers AI. It stores and searches high-dimensional vector embeddings (such as text embeddings) using configurable dimensions and distance metrics like cosine and euclidean, automatically handling index optimization and regeneration when new data is inserted.