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Vespa

Search engine first, vector store second.

currentVespa.ai ↗Verified 2026-08-13

Ranking

and retrieval

Specifications

IndexHNSW plus inverted
Hybrid searchYes, native
HostingSelf-host and managed
LicenceApache 2.0
p50 latency~10ms

Official links

Vespa.ai official site

What matters

  • Yahoo's engine, open sourced; runs enormous production workloads
  • Steep learning curve, unmatched ranking control

Best for complex ranking at very large scale.

Compare with

All 5 side by side →

Vespa vs pgvector →Vespa vs Qdrant →Vespa vs Pinecone →Vespa vs Milvus →Vespa vs Weaviate →

Also in Vector Databases

pgvector · PostgreSQLQdrantPineconeMilvus · ZillizWeaviate