Vespa
Big-scale hybrid search and ranking platform
Vector databaseSearch & serving engineApache-2.0Runs locallyJava/C++Advanced
🐳 Docker pulls
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🚀 Latest release ·
What is Vespa?
Vespa is a production engine combining vector search, lexical search and ML-model ranking over billions of documents with real-time writes — the platform behind major web-scale services.
Why people choose Vespa
- True hybrid: vectors + text + ML ranking in one query
- Real-time indexing at very large scale
- Proven in production for decades at Yahoo/Verizon Media
Vespa at a glance
| Category | Vector database |
| Type | Search & serving engine |
| License | Apache-2.0 |
| Runs locally | Yes |
| Built with | Java/C++ |
| Skill level | Advanced |
| Best for | web-scale hybrid search with online ranking |
Latest releases
Open-source alternatives to Vespa
Other open-source vector database tools worth comparing:
QdrantFast Rust-based vector search
WeaviateVector DB with built-in modules
MilvusBillion-scale vector database
ChromaThe simplest embedding DB for prototyping
pgvectorVector search inside PostgreSQL
LanceDBServerless vector DB for AI
FAISSThe reference library for similarity search
pgvectorscaleMake pgvector fast at scale
MarqoVector search with embedding built in
USearchTiny, extremely fast vector indexVespa head-to-head
Vespa vs QdrantVespa vs WeaviateVespa vs MilvusVespa vs ChromaVespa vs pgvectorVespa vs LanceDBVespa vs FAISSVespa vs pgvectorscaleVespa vs MarqoVespa vs USearch
FAQ
Is Vespa free?
Vespa is free and open-source (Apache-2.0 license), so you can use, self-host and modify it at no cost.
Can I run Vespa locally?
Yes. Vespa is designed to run on your own machine or server, keeping your data private.
What is the best alternative to Vespa?
Popular open-source alternatives include Qdrant, Weaviate, Milvus. See the comparisons above to choose.
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