Haystack

Free tier

Platforms: web, api | Last verified: 2026-04-08

Features

*LLM orchestration
*Retrieval-augmented generation
*Component-based architecture
*Multiple LLM support
*Document processing
*Pipeline building
*Evaluation framework

Pricing

Free: Open-source framework

No paid plans listed.

Strengths

+Open-source and free
+Flexible architecture
+Great documentation
+Active community

Limitations

-Steeper learning curve
-Smaller ecosystem than LangChain
-Requires more manual setup

Compare Haystack with

DSPy LiteLLM Semantic Kernel

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