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LiteRAG: Cost-Efficient Graph-Based Retrieval-Augmented Generation

Research LLM Agents

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Overall 78
Content 95
Popularity 37

Observed public metrics from 1 member.

Merged summary

TL;DR - LiteRAG is a graph-based RAG method that replaces retrieval-time LLM control with query-conditioned graph exploration and compact reasoning-chain construction. It maintains or improves retrieval quality while substantially reducing latency, cost, and context size.

  • Achieves the highest reported overall quality on DistComp (0.798), a multi-hop retrieval benchmark for distributed-systems papers.
  • Reduces per-query latency by over 100Ă— and cost by over 99% versus GraphRAG Global and DRIFT.
  • Matches LinearRAG’s overall quality on UltraDomain while using roughly 14Ă— fewer tokens.
  • Ablations identify query-adaptive thresholding and community-aware hub penalization as the main contributors to token efficiency.

Sources (1)

LiteRAG: Cost-Efficient Graph-Based Retrieval-Augmented Generation

arXiv cs.IR Daniel Alejandro Coll Tejeda, Pedro GarcĂ­a LĂłpez, Daniel Barcelona-Pons 2026-09-09 arXiv:2609.10239
Public signals Semantic Scholar citations 0 · Semantic Scholar influential citations 0
Providers: Hugging Face · N/A OpenAlex · N/A Publisher · N/A Semantic Scholar · Citations 0 · Influential citations 0 X · N/A Fetched 2026-09-24 14:23:21.986590 UTC

TL;DR - LiteRAG is a graph-based RAG method that replaces retrieval-time LLM control with query-conditioned graph exploration and compact reasoning-chain construction. It maintains or improves retrieval quality while substantially reducing latency, cost, and context size.

  • Achieves the highest reported overall quality on DistComp (0.798), a multi-hop retrieval benchmark for distributed-systems papers.
  • Reduces per-query latency by over 100Ă— and cost by over 99% versus GraphRAG Global and DRIFT.
  • Matches LinearRAG’s overall quality on UltraDomain while using roughly 14Ă— fewer tokens.
  • Ablations identify query-adaptive thresholding and community-aware hub penalization as the main contributors to token efficiency.
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