OpenSearch and Aerospike are two prominent databases with vector search capabilities that play a crucial role in AI applications such as recommendation engines, image retrieval, and semantic search. Both platforms have evolved to address modern data challenges, offering powerful and flexible solutions tailored to diverse application needs. While OpenSearch is highly scalable and excels in handling complex searches, Aerospike offers peak performance and efficient management of large data volumes. The choice between the two largely depends on specific use cases, requirements for search capabilities, performance needs, and system architecture.