Snowflake Cortex alternatives
6 rag tools in the same lane as Snowflake Cortex, ranked by editorial score.
CU
Cube
RAG · Multi-model
8.1
Semantic layer that grounds LLM agents in your real business metrics instead of letting them hallucinate SQL.
Freemium· Cube Core open source; Cube Cloud paid, contact salessemantic-layerembedded-analytics
WA
Wren AI
RAG · Multi-model (OpenAI, Anthropic, Gemini, self-hosted)
8.0
Open-source GenBI semantic layer that lets AI agents query your warehouse in natural language with governed, accurate SQL.
Freemium· Free: $0 · Essential Cloud: $179 · Enterprise Cloud: $559 · Enterprise Plus: Contact Ustext-to-sqlsemantic-layer
VA
Vanna.ai
RAG · Multi-model (Anthropic, OpenAI, Gemini, Ollama)
8.3
Open-source text-to-SQL agent that learns your schema and writes queries against your real warehouse.
Freemium· Explorer: $50 · Team: $500 · Enterprise: Contact salestext-to-sqlnatural-language-bi
RA
RAGFlow
RAG · Multi-model
8.1
Open-source RAG engine with deep document parsing, hybrid search, and visual agent orchestration.
Freemium· Free tier; Starter $29/mo; Pro $129/mo; Enterprise customdocument-qaenterprise-search
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
VE
Vectara
RAG · In-house Boomerang (retrieval) and Mockingbird (generation) plus BYOM for GPT, Claude, Gemini, and open-weight LLMs
Enterprise agent platform with built-in retrieval, grounding, and hallucination controls
Enterprise· SaaS: $100K/ year · VPC: $250K/ year · On-prem: $500K/ yearEnterprise knowledge-base searchGrounded customer-support chatbots