Adaptive Retrieval Economics and Serverless Vector Search

PACE advances evidence frontloading, selecting complementary evidence by marginal utility and reallocating budget as retrieval, reranking, or generation becomes the bottleneck. Hybrid BM25-plus-dense implementations and managed options such as Qdrant Serverless reinforce the direction, while pricing, isolation, synchronization, cold starts, and real-world recall/latency still require validation.