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Real-Time AI Data Pipeline Stack

$0/mo

Build RAG systems over continuously updated data with streaming ETL, live vector indexes, and database AI agents.

PathwayReal-Time ETL Engine
Free open-source (Apache 2.0); Enterprise cloud available
LanceDBEmbedded Vector Storage
Free open-source; Cloud Pro $39/mo; Enterprise custom
DB-GPTAI Data Agents
Free and open-source (MIT)
WeaviateDistributed Vector Search
Self-hosted free (BSD 3-Clause). Weaviate Cloud includes Engram always-free plus Flex pay-as-you-go, Premium, and Enterprise plans.

What This Stack Does

Pathway provides real-time ETL with a Python API and Rust engine for streaming data processing. LanceDB stores vectors on disk with automatic versioning and hybrid search. DB-GPT adds multi-agent orchestration for complex data analysis workflows. Weaviate offers distributed vector search with built-in vectorization modules.

The Bottom Line

This stack targets teams building RAG systems that need live context rather than stale batch embeddings. Pathway continuously processes incoming data and updates vector indexes. LanceDB handles the storage layer. DB-GPT provides agents for automated analysis and reporting. Weaviate scales to billions of vectors for enterprise workloads.

Stack Overview

PathwayReal-Time ETL Engine
Pricing
Free open-source (Apache 2.0); Enterprise cloud available
Open Source
Yes
LanceDBEmbedded Vector Storage
Pricing
Free open-source; Cloud Pro $39/mo; Enterprise custom
Open Source
Yes
DB-GPTAI Data Agents
Pricing
Free and open-source (MIT)
Open Source
Yes
WeaviateDistributed Vector Search
Pricing
Self-hosted free (BSD 3-Clause). Weaviate Cloud includes Engram always-free plus Flex pay-as-you-go, Premium, and Enterprise plans.
Open Source
Yes