Vespa
Open-source search and serving engine combining vector search, keyword search, and ML ranking at scale
Vespa is an open-source platform originally developed at Yahoo that combines big data serving, vector search, keyword search, and machine-learned ranking in a single engine. It handles hybrid search (BM25 + semantic vectors), tensor operations, multi-phase ranking, and real-time data updates across billions of documents with sub-100ms latency. Vespa Cloud offers managed hosting with usage-based pricing, autoscaling, and a free trial with $300 in credits. Also available on AWS and GCP Marketplace.
Pricing: Usage-based
Vespa Alternatives
Explore 19 products in the Vector databases category. View all Vespa alternatives.
TopK
AI-native search engine combining vector, keyword, and faceted search
Redis
In-memory vector database for low-latency similarity search across AI applications
Supabase Vector
Open-source Postgres vector database and AI toolkit built on pgvector
Zilliz
A Widely-Adopted Vector Database.
Marqo
Use your data to increase relevance with vector search.
Is your product missing?