Knowledge²
OverviewK² Retrieval StackUnified dense, sparse, and reranker models.
Stack componentsDense + Sparse RetrieversDual encoders tuned on real production queries.Reranker ModelsLightweight cross-encoders for precise scoring.Fusion ModelsLearned blending that outperforms heuristic fusion.
OverviewK² Retrieval Stack
Stack componentsDense + Sparse RetrieversReranker ModelsFusion Models
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Knowledge² blog

April 16, 2025•12 min read

The Painful Reality of Enterprise RAG (And Why We Built K²)

Why off-the-shelf RAG pipelines fail under real-world constraints, and how Knowledge² is rebuilding the retrieval stack.

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Retrieval models, evaluation loops, and playbooks built for teams squeezing every ounce of signal out of their data.

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