DataStax Astra DB alternatives
6 rag tools in the same lane as DataStax Astra DB, 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
LA
LanceDB
RAG
8.2
Open-source multimodal lakehouse and vector database built for AI training and retrieval at petabyte scale.
Freemium· Open-source free; LanceDB Cloud and Enterprise via contact salesvector-searchrag
PO
PostgresML
RAG · Multi-model (Llama, Mistral, open-source embeddings)
7.1
PostgreSQL extension that runs embeddings, vector search, and LLM inference inside your database.
Freemium· Serverless: From $7.50 per query hour · Dedicated: From $0.60 per instance hour · Enterprise: Custom pricingvector-searchrag
SU
Supabase
RAG
Open-source Firebase alternative built on Postgres with a first-class pgvector AI toolkit.
Freemium· Free: $0 · Pro: $25 · Team: $599 · Enterprise: CustomRAG chatbot backendsemantic document search
TI
TiDB
RAG
AI-native distributed SQL database with built-in vector search, agent memory, and RAG pipelines
Freemium· TiDB Cloud Starter: $0 · TiDB Cloud Essential: ≈$20 / day · TiDB Cloud Premium: $1800 · TiDB Cloud Dedicated: $1376 · TiDB Self-Managed: Pricing upon requestAgent memory storeRAG retrieval backend