Haystack

Haystack is an open-source framework for building AI applications that use search, retrieval, and large language models.

It is commonly used for question answering, semantic search, document retrieval, and retrieval-augmented generation workflows.

How Does Haystack Work?

Haystack connects different AI and data-processing components into pipelines.

A typical workflow may include:

1. Load documents or other data.
2. Store or index the content.
3. Retrieve relevant information.
4. Pass the retrieved context to a language model.
5. Generate a final response.

A simplified flow looks like:

User Query
    ↓
Retriever
    ↓
Relevant Documents
    ↓
Language Model
    ↓
Generated Answer