LlamaIndex is an open-source framework for building search and retrieval applications around language models. It provides a simple interface for querying different models and retrieving relevant documents. section 9.2.3
For agent workflows, LlamaIndex offers a more focused alternative to broader frameworks such as LangChain, especially when applications process large amounts of data. The trade-off is strategic: abstractions can accelerate prototypes but may add overhead or lock-in, so teams should compare the framework with a custom implementation. section 9.2.3
Document retrieval workflow
An application can query a language model through LlamaIndex and retrieve relevant documents from a large data collection, supporting a search-oriented agent or workflow. section 9.2.3



