Qdrant
qdrant.tech
A high-performance open-source vector search engine written in Rust, designed for production AI applications with support for filtering, payload storage, and sparse-dense hybrid search.
Why it is useful
One of the fastest vector databases available for production workloads, with native support for hybrid sparse-dense search that improves retrieval quality over pure embedding search. Runs as a Docker container with a clean REST API, and the Rust implementation means low memory overhead even with large collections. Good choice when Chroma's in-process simplicity isn't enough for your scale.
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