TopK

TopK builds a unified retrieval engine for developers running search inside AI applications, on the premise that the engine, models, and inference should be built together. The system combines dense vector search, sparse keyword matching, multi-vector retrieval, and metadata filters in one query layer, and it supports deployment in the company's cloud or in a customer's own environment. Its stated uses include enterprise search, visual document retrieval, and search for AI agents.

TopK sells the engine as a single retrieval system covering dense, sparse, and multi-vector search, with metadata filtering in the same query layer. It targets developers and AI teams building search into their own applications, and the company names visual document retrieval and search for AI agents among its uses.