# Haystack AI

> Open-source NLP framework for building RAG and search pipelines.

Haystack AI is an open-source AI framework for building production-grade NLP applications including conversational search, question answering, document retrieval, and RAG pipelines. It provides modular components — document stores, retrievers, readers, generators, and pipelines — that can be composed into sophisticated AI search and language processing systems. Enterprise AI teams and NLP researchers use Haystack to build custom AI search experiences, document intelligence applications, and conversational interfaces over large document collections with full control over the architecture and deployment.

## Quick facts

- Categories: Search Engine, Developer Tools, Document Search
- Pricing: Freemium (free plan + paid tiers)
- Free plan: Yes
- Official site: https://haystack.deepset.ai
- Last checked: 2026-10-23

## Key features

- Open-source NLP framework
- Retrieval-augmented generation
- Pipeline orchestration
- Multiple LLM backends
- Document processing
- Community components

## Use cases

- Building production NLP pipelines
- Creating RAG applications
- Research on NLP architectures
- Enterprise document processing

## Links

- Nextool.ai page: https://nextool.ai/tools/haystack-ai/
- Alternatives: https://nextool.ai/alternatives/haystack-ai/

Source: Nextool.ai (https://nextool.ai/tools/haystack-ai/). Pricing and features change; confirm on the provider's site before relying on them.