Azure Cosmos DB is a globally distributed, multi-model database service provided by Microsoft Azure. It offers a highly scalable and low-latency platform designed to meet the demands of modern, data-intensive applications. Cosmos DB supports multiple data models, including document, key-value, graph, and column-family, making it versatile for a wide range of use cases. Its global distribution and automatic data replication ensure high availability and fault tolerance, with the ability to replicate data across multiple Azure regions. Additionally, it provides comprehensive SLAs for throughput, availability, and consistency, making it a robust choice for businesses requiring seamless, highly available, and globally accessible data storage and management.