Qdrant vs Milvus

Detailed side-by-side comparison to help you choose the right tool

Qdrant

🔴Developer

Vector Database

Open-source, Rust-built vector similarity search engine with payload filtering, hybrid search, quantization, and a fully managed Qdrant Cloud — popular for RAG, recommendation, and agent memory.

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Starting Price

Free

Milvus

🔴Developer

AI Knowledge Tools

Milvus: Open-source vector database to analyze and search billions of vectors with millisecond latency at enterprise scale.

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Starting Price

Free

Feature Comparison

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FeatureQdrantMilvus
CategoryVector DatabaseAI Knowledge Tools
Pricing Plans131 tiers8 tiers
Starting PriceFreeFree
Key Features
  • Vector Similarity Search
  • Payload Filtering
  • Hybrid Dense and Sparse Retrieval
  • Large-Scale Vector Search
  • Multiple Index Types (IVF, HNSW, DiskANN, GPU)
  • Hybrid Search (Vector + Scalar Filtering)

💡 Our Take

Choose Qdrant if you want a simpler operational footprint with managed cloud and self-hosted paths. Choose Milvus if your team is already committed to the Milvus ecosystem or needs its particular large-scale distributed architecture.

Qdrant - Pros & Cons

Pros

  • Apache 2.0 license with a credible, focused open-source core — easy to self-host
  • Excellent quantization options dramatically reduce RAM and infra cost at large scale
  • Payload filtering uses inverted indexes so metadata constraints don't hurt vector recall
  • Multiple community MCP servers make it usable as agent memory from day one

Cons

  • Smaller managed-service ecosystem than Pinecone — fewer hand-holding features for non-engineers
  • Sparse hybrid search is solid but less mature than dedicated full-text engines
  • Self-hosting still requires Kubernetes or Docker operational knowledge
  • Cloud pricing is per cluster size rather than per-document, so capacity planning matters

Milvus - Pros & Cons

Pros

  • Open-source under the Apache 2.0 license, giving teams full self-hosting and code-level control instead of relying only on a proprietary SaaS service.
  • Built for very large vector search workloads with low-latency retrieval, making it suitable for large RAG, semantic search, and recommendation systems.
  • Supports multiple index types including IVF, HNSW, DiskANN, and GPU-oriented options, so teams can tune recall, latency, memory use, and cost for different workloads.
  • Provides scalar filtering, partitioning, multiple vector fields, and dynamic schemas, which are important for production search systems with metadata and multi-tenant data.
  • Works with common AI frameworks including LangChain, LlamaIndex, and Haystack, plus direct Python access through PyMilvus.
  • Offers both Milvus Lite for local development and Zilliz Cloud for managed deployments, allowing teams to move from prototype to production without changing the core database API.

Cons

  • Self-hosted distributed Milvus requires operating several moving parts, including etcd, object storage such as MinIO or S3, and a log broker such as Pulsar or Kafka.
  • The operational learning curve is steeper than lighter vector stores such as Chroma or database extensions such as pgvector.
  • Milvus can be excessive for small prototypes, low-volume apps, or teams that only need thousands or a few million vectors.
  • Application code written directly against PyMilvus may require migration work if the team later moves to another vector database.
  • Managed Zilliz Cloud pricing should be verified directly before budgeting production usage.

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🔒 Security & Compliance Comparison

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Security FeatureQdrantMilvus
SOC2✅ Yes✅ Yes
GDPR✅ Yes✅ Yes
HIPAA✅ Yes
SSO✅ Yes✅ Yes
Self-Hosted🔀 Hybrid🔀 Hybrid
On-Prem✅ Yes✅ Yes
RBAC✅ Yes✅ Yes
Audit Log✅ Yes✅ Yes
Open Source✅ Yes✅ Yes
API Key Auth✅ Yes✅ Yes
Encryption at Rest✅ Yes✅ Yes
Encryption in Transit✅ Yes✅ Yes
Data Residencyconfigurableconfigurable by self-hosted deployment or selected Zilliz Cloud region
Data Retentionconfigurableconfigurable
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