Which is more popular, Haystack or PageIndex?

PageIndex has more GitHub stars (38,495 vs 26,641).

Which is more actively developed, Haystack or PageIndex?

Haystack had more commits in the last 90 days (761 vs 172).

Compare their capabilities, limitations and "best for" notes above. Trying each on a small task is the fastest way to decide.

Side-by-side comparison of two AI agent tools

PageIndex is growing faster: +6,570 GitHub stars in the last 30 days vs +319 for Haystack.
Haystack is open-source; PageIndex is freemium.
Pick Haystack for: open-source AI orchestration framework for modular RAG pipelines and agent workflows. Pick PageIndex for: pageIndex: Document Index for Vectorless, Reasoning-based RAG.

From GitHub data refreshed daily.

Haystackopen-source

Open-source AI orchestration framework for modular RAG pipelines and agent workflows

📑 PageIndex: Document Index for Vectorless, Reasoning-based RAG

+Production-ready architecture with robust testing and type safety (Mypy, comprehensive test coverage)
+Modular pipeline design allows for flexible composition and customization of AI workflows
+Strong community adoption with 24,000+ GitHub stars and active development by deepset

•Building production RAG systems with sophisticated document retrieval and context management
•Creating AI agent workflows with explicit control over routing and decision-making processes
•Developing modular AI pipelines that require custom retrieval and context engineering components

Which is more popular, Haystack or PageIndex?: PageIndex has more GitHub stars (38,495 vs 26,641).
Which is more actively developed, Haystack or PageIndex?: Haystack had more commits in the last 90 days (761 vs 172).
Should I use Haystack or PageIndex?: Compare their capabilities, limitations and "best for" notes above. Trying each on a small task is the fastest way to decide.