# Qdrant

Vector search engine with structured payload filtering.

## Comparison target

Vector · Self-managed · Engine

Self-managed server deployment; Qdrant Cloud and Edge are outside this target.

Components: No separate catalog component

Revision: 2026-09-14.1 · Review: unreviewed

Commissioned by a Nimbalyst maintainer. Documentation synthesis; no independent review or product execution.

## Applicability

Unpinned upstream documentation accessed 2026-09-14; pin engine, extension and service versions before use.. Self-managed server deployment; Qdrant Cloud and Edge are outside this target..

## Claims

- **yes · documented**: Searches dense, sparse and multi-vector records. [Qdrant repository](https://github.com/qdrant/qdrant) Scope: Documented for this target; no runtime tests recorded.
- **yes · documented**: Filters vector searches by JSON payload fields. [Qdrant repository](https://github.com/qdrant/qdrant) Scope: Documented for this target; no runtime tests recorded.
- **yes · documented**: Combines vector retrievals using fusion strategies. [Qdrant repository](https://github.com/qdrant/qdrant) Scope: Documented for this target; no runtime tests recorded.
- **yes · documented**: Documents distributed sharding and replication. [Qdrant repository](https://github.com/qdrant/qdrant) Scope: Documented for this target; no runtime tests recorded.
- **yes · documented**: Provides a REST API. [Qdrant repository](https://github.com/qdrant/qdrant) Scope: Documented for this target; no runtime tests recorded.

## Open questions

- Which pinned versions, topology and service tier fit the intended workload?
- What are measured correctness, latency, recovery and total operating cost under that workload?

## Verification plan

1. Pin the target configuration and define workload fixtures, access and budget.
2. With authorization, test concurrent writes and recovery against explicit correctness expectations.
3. For vector workloads, measure filtered recall against an exact-search baseline and record index settings.

Last checked: 2026-09-14. Recheck by: 2026-10-14.

Content rights: Unlicensed prototype; redistribution decision pending.