Haystack vs LlamaIndex

Pick two tools from the same category to compare side-by-side.

	Haystack Open-source Python orchestration framework from deepset for production LLM and RAG applications.	LlamaIndex Data framework for connecting LLMs to private data, with RAG, agents, and event-driven workflows.
Category	framework	framework
Vendor type	hybrid	hybrid
Pricing	freemium	freemium
Strengths	+ Transparent, modular pipeline architecture + Strong, mature support for RAG and retrieval workflows + Broad ecosystem of model and document-store integrations + Production focus with a commercial platform option from deepset	+ Extensive data connectors and RAG tooling + Strong document parsing and ingestion (LlamaParse/LlamaCloud) + Agents and event-driven workflows built in + Large ecosystem and integrations
Tradeoffs	− Pipeline/component model adds boilerplate for simple tasks − Historically RAG-centric, with agents added more recently	− Broad API surface can be complex to navigate − Heritage is RAG-centric rather than agent-first − Frequent API changes across versions
Used in stacks	0	0