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AI for semantic search apps

Ship search experiences over private document collections.

#ToolCategoryPricingVisit
1LlamaIndex

Python RAG framework — connect LLMs to 160+ data sources with production-grade retrieval pipelines

LLM FrameworksFreeVisit
2LangChain

Open-source LLM application framework — chains, agents, RAG, and 700+ integrations with 127K GitHub stars

LLM FrameworksFreeVisit
3Weaviate

Open-source vector database — hybrid search, multi-tenancy, and native LLM module integrations for RAG

LLM FrameworksFreeVisit
4Qdrant

High-performance open-source vector database built in Rust

LLM FrameworksFreeVisit
5Pinecone

Managed vector database for production AI apps — serverless and low-latency

LLM FrameworksFreemiumVisit

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