> For the complete documentation index, see [llms.txt](https://tailwindsdocs.innovativesol.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://tailwindsdocs.innovativesol.com/readme/chatflows/langchain/retrievers.md).

# Retrievers

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Retriever nodes return documents given an unstructured query. It is more general than a vector store. A retriever does not need to be able to store documents, only to return (or retrieve) them.

### Retriever Nodes:

* [Cohere Rerank Retriever](/readme/chatflows/langchain/retrievers/cohere-rerank-retriever.md)
* [Embeddings Filter Retriever](/readme/chatflows/langchain/retrievers/embeddings-filter-retriever.md)
* [HyDE Retriever](/readme/chatflows/langchain/retrievers/hyde-retriever.md)
* [LLM Filter Retriever](/readme/chatflows/langchain/retrievers/llm-filter-retriever.md)
* [Multi Query Retriever](/readme/chatflows/langchain/retrievers/multi-query-retriever.md)
* [Prompt Retriever](/readme/chatflows/langchain/retrievers/prompt-retriever.md)
* [Reciprocal Rank Fusion Retriever](/readme/chatflows/langchain/retrievers/reciprocal-rank-fusion-retriever.md)
* [Similarity Score Threshold Retriever](/readme/chatflows/langchain/retrievers/similarity-score-threshold-retriever.md)
* [Vector Store Retriever](/readme/chatflows/langchain/retrievers/vector-store-retriever.md)
* [Voyage AI Rerank Retriever](/readme/chatflows/langchain/retrievers/page.md)