Compare Tools
Pick a category, then select 2–3 tools to compare side by side.
Category
Select 2–3 tools to compare
MilvushybridFree (self-hosted, Apache 2.0)
pgvectorself-hostedFree (open-source PostgreSQL extension)
Hybrid Search
Metadata Filtering
Multi Tenancy
Managed Embeddings
Mcp Server
Serverless
Pricing
Free (self-hosted, Apache 2.0)Free Zilliz Cloud Serverless tier$126/GB/mo Standard Zilliz Cloud Dedicated$197/mo EnterpriseBusiness Critical
Free (open-source PostgreSQL extension)Available on managed Postgres: Supabase, Neon, RDS, Cloud SQL, Crunchy Bridge
Open Source
Self-Hosted
SDK Languages
pythonjavascripttypescriptgojavacsharpruby
pythonjavascripttypescriptgojavarubyrustcsharpphp
Frameworks
langchainllamaindexvercel-aihaystackdspy
langchainllamaindexvercel-aihaystack
Compliance
soc2gdprhipaaiso27001
soc2hipaagdprpci-dss
Best For
Billion-scale vector workloads with the widest selection of ANN index types — HNSW, IVF, DiskANN, SCANN, GPU indexes
Teams already running Postgres who want vector search without adding a new database — ACID, joins, and one operational story
Limitations
Self-hosted deployment is operationally complex (depends on etcd, MinIO, Pulsar/Kafka); no first-party MCP server yet; managed offering is through Zilliz, not Milvus directly
Slower at scale than purpose-built engines; no native multi-tenancy primitives beyond schemas; hybrid search and serverless depend on the host platform (Supabase, Neon, etc.), not pgvector itself
Supported Not supported Unverified