Haystack

OfficialRAG & Retrieval

Production-ready framework for building RAG pipelines, semantic search, and question answering systems. Component-based architecture with strong focus on retrieval quality.

by deepset18.6k starsApache-2.0Updated Apr 2026

Installation

Install
pip install haystack-ai

Language support

Python

Supported LLMs

OpenAIAnthropicGoogleCohereHugging FaceOllama

Features (8)

pipelines
retrievers
generators
document_stores
evaluation
preprocessing
agents
chat

Details

Author
deepset
Category
RAG & Retrieval
Languages
1
Features
8
Stars
18.6k
License
Apache-2.0
Status
Official