Elasticsearch Vector Search alternatives
6 rag tools in the same lane as Elasticsearch Vector Search, ranked by editorial score.
DV
Databricks Vector Search
RAG · Multi-model (BYO embeddings or Databricks-hosted)
8.1
Managed hybrid vector search that lives inside the Databricks lakehouse and auto-syncs with your source tables.
Enterprise· Standard: $605 · Storage Optimized: $922rag-retrievalhybrid-search
MA
MongoDB Atlas Vector Search
RAG · Bring-your-own embeddings (OpenAI, Cohere, open models); native Voyage AI embeddings and rerankers
8.6
Vector search built into the operational database you're already using.
Freemium· Free: $0 · Flex: Up to $30 · Dedicated: Starts at $56.94RAG over enterprise documentsProduct and content recommendation engines
ME
Meilisearch
RAG · Retrieval engine (Rust); pluggable embedders including OpenAI, Cohere, Hugging Face, Ollama and custom REST models
Open-source, lightning-fast search engine with built-in hybrid and vector search for RAG
Freemium· Cloud: $20/month · Usage-based: $30/month · Resource-based: $23/month · Instance: $18/monthE-commerce product searchDocumentation and knowledge base search
VE
Vespa
RAG · Hosted search engine (not an LLM)
8.2
Yahoo's open-source search engine with vector + sparse retrieval.
Freemium· Free open-source; Vespa Cloud paidlarge-scale searchranking
DA
DataStax Astra DB
RAG · Bring-your-own embeddings; integrates with OpenAI, Cohere, Hugging Face, Mistral, NVIDIA NIM, and Vertex AI via server-side vectorize
8.6
Serverless vector and document database for production RAG and AI agents
Freemium· Small On-Demand: Contact sales · Medium (Balanced): Contact sales · Medium (Storage Optimized): Contact sales · Large (Balanced): Contact sales · Large (Storage Optimized): Contact salesRAG chatbot over enterprise documentsAgent long-term memory store
WE
Weaviate
RAG · Hosted vector DB (not an LLM)
8.4
Open-source vector DB with hybrid search and modules.
Freemium· Free: $0 · Flex: $45 · Premium: $400self-hosted RAGhybrid search