Enterprise / Life Sciences

Knowledge Graph Q&A AI Architecture

Compare RAG, fine-tuning, long-context, and hybrid approaches for knowledge graph q&a at 25K queries/month.

Top approaches

#1 Best fit
Hybrid / RAFT

Graph traversal + LLM reasoning requires both retrieval and domain adaptation.

#2 Runner-up
RAG

Works for simpler fact-lookup queries over the graph.

#3 Alternative
Fine-Tuning

Needed for SPARQL/Cypher query generation tasks.

Cost at typical volume

Estimated at 25K queries/month

Long-Context$506/mo
RAG$744/mo
Hybrid / RAFT$3,850/mo
Fine-Tuning$5,176/mo

Key considerations

  • 1Combine vector search with graph traversal (GraphRAG) for multi-hop reasoning.
  • 2Entity disambiguation is the hardest problem — invest in a dedicated NER pipeline.
  • 3SPARQL/Cypher query generation fine-tuning yields 30–50% accuracy gains on complex graph queries.

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