Pyyan / Compare / R2R vs Haystack

R2R vs Haystack

2 of 5

RAG & Knowledge Graphs · verified 13 Aug 2026

R2RSciPhicurrent
Haystackdeepsetcurrent
3 slots left
SpecificationR2RHaystack
SummaryRAG as a service you deploy yourself.A strict pipeline abstraction, built for regulated work.
KindPlatformFramework
GraphYesVia integrations
LanguagePythonPython
LicenceMITApache 2.0
GitHub stars~7k~20k
CategoryRAG & Knowledge GraphsRAG & Knowledge Graphs
OfficialSciPhideepset

Highlighted rows are where these differ.

R2R

  • Ingestion, retrieval, auth and observability included
  • Graph extraction built in

Best for a working RAG API without building one.

Full spec sheet →

Haystack

  • Every step is declared, which is what audits need
  • Cleanest option where a wrong answer has consequences

Best for finance, health, legal and government.

Full spec sheet →