Open Source Alternatives to Vespa
6 open source AI Search Engine options similar to Vespa, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Every company listed publishes its source: each one carries an open source sector tag and a public GitHub repository.
Visual Layer50DatabaseTel Aviv, Israel$7.0MAI-powered database for visual data, enabling intelligent search and analysis of images and videos.
Open source · Self-hostable
- Spice AI40Databaseתל אביב - יפו, Israel
Ground AI in enterprise data with zero ETL. Spice is an open-source SQL query & hybrid search engine built for data-intensive apps & AI agents.
Open source · Self-hostable
MariaDB61DatabaseRedwood City, United States$131.0MA cloud database company providing a unified platform for transactional, analytical, and AI workloads.
Open source · Self-hostable
Faiss by Meta28AI Foundation & ComputeOpen-source library by Meta AI for efficient similarity search and clustering of dense vectors.
Open source · Self-hostable
Qdrant71Vector DatabaseBerlin, Germany$87.5MHigh-performance, open-source vector search engine built in Rust for production-grade AI and machine learning workloads.
Open source · Self-hostable
Chroma61Artificial IntelligenceSan Francisco, United States$20.3MOpen-source AI-native vector database that makes knowledge and memory pluggable for LLM applications.
Open source · Self-hostable