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Qdrant

Qdrant is an open-source vector search engine and managed cloud service for semantic search, RAG, recommendations, and AI agents.

Qdrant

Qdrant stores vectors with metadata and supports similarity search, metadata filtering, dense and sparse hybrid search, multivector retrieval, and reranking. It provides REST and gRPC APIs, official client libraries, a Web UI, and managed cloud deployment.

Developers use it for semantic search, retrieval-augmented generation, recommendation systems, anomaly detection, and agent memory. Qdrant can run locally, in hybrid or private environments, or in Qdrant Cloud. Cloud pricing is usage-based for production clusters, and paid embedding models may add token charges.

Features

  • Dense and sparse hybrid search with BM25, SPLADE++, and miniCOIL
  • Metadata filtering with nested, text, geo, and has_vector conditions
  • Multivector retrieval for text, image, audio, and other multimodal data
  • Reranking with score boosting, ColBERT, and Maximum Marginal Relevance
  • Real-time indexing without rebuilding the entire index
  • Scalar, binary, asymmetric, and TurboQuant quantization
  • REST and gRPC APIs with Python, TypeScript, Rust, Go, Java, and .NET clients
  • Open-source Apache 2.0 engine available for local deployment

Use cases

  • Build retrieval-augmented generation systems
  • Search documents by meaning rather than exact keywords
  • Recommend products, content, or experiences using vector similarity
  • Give AI agents persistent memory and contextual retrieval
  • Detect anomalies by finding unusual vector patterns
  • Run filtered hybrid search across large enterprise collections

Pros

    Cons

      Pricing

      Starting price
      Free
      Pricing checked
      2026-09-19

      Free Tier

      Free forever

      • Single Node Cluster
      • 0.5 vCPU / 1GB RAM/ 4 GB Disk.
      • Free Cloud Inference With Selected Models

      Standard Tier

      Usage-based pricing

      • Dedicated Resources
      • Flexible Vertical and Horizontal Scaling
      • Highly Available Setups
      • Backup & Disaster Recovery
      • Free Tokens for Paid Inference Models
      • 99.5% Uptime SLA

      Premium Tier

      Minimum spend required

      • SSO
      • Private VPC Links
      • 99.9% Uptime SLA
      • Extra Support

      Hybrid Cloud

      Runs on

      • Runs managed Qdrant clusters on your own infrastructure
      • Local Data Residency
      • Data Stays in Your Network
      • Fully Managed Through Qdrant Cloud

      Private Cloud

      Runs on

      • Dedicated, isolated deployment
      • Custom SLAs
      • Full Isolation
      • Air-Gapped Setups
      Official website