"RAG" AI Tools

LlamaIndex

Freemium

LlamaIndex is the data framework for LLMs — hundreds of connectors turn priv

LangChain

Freemium

LangChain is the most popular LLM application framework — mature abstraction

FastGPT

Freemium

FastGPT is an open-source knowledge-base QA system with visual Flow orchestr

Dify

Freemium

Dify is the popular open-source LLM app platform — visually orchestrate RAG