A lot goes into building accurate AI applications. Astra DB Hybrid Search provides vector search for contextual relevance and lexical search for precise keyword matching, but it also automates reranking with NVIDIA NeMo Retriever reranking microservices. The result? Astra DB Hybrid Search significantly improves AI-powered search, recommendations, and personalization—improving the relevance of your AI apps by up to 45%.
Easily build RAG apps in minutes with high relevance using Hybrid Search with Langflow.
You don’t have to configure your reranker; you can use it out-of-the-box on Astra DB. You get the power of auto-reranking at the database layer, without your data needing to leave the system.
Top results are reordered based on fine-tuned LLM models, delivering state-of-the-art relevance ranking and improving relevance by an average of 18.5% up to 45.07%.
Simply drag and drop with Langflow, or use the Data API or AstraPy client.
Hybrid Search combines vector search and lexical search, ensuring your AI retrieves and ranks the most contextually relevant results.
Some databases (including MongoDB and others) struggle with performance bottlenecks in high-query environments. Astra DB delivers low-latency hybrid search at scale.
Hybrid Search combines BM25 keyword matching with vector search, ensuring both relevance and contextual depth.
Hybrid search combines vector search (for semantic understanding) and lexical search (for exact keyword matching) to ensure the best possible results. While vector search helps understand context and meaning, lexical search ensures critical keyword matches aren’t overlooked. Blending these signals effectively requires intelligent ranking.
Astra DB performs hybrid retrieval, combining lexical search using BM25 and vector search powered by Apache Cassandra®.
The top results are passed through the NVIDIA NeMo Retriever reranking microservices, which reorders them based on fine-tuned LLM models, significantly improving relevance.
You can achieve up to 45% improvement in search relevance, ensuring GenAI applications return the most accurate responses.
You can use Astra DB Hybrid Search with the Astra DB Python client supported by the schema-less, document-based Data API or Langflow's Astra DB component.