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Research2026-06-02 · source-backed
It estimates which questions need expensive retrieval and which the model already knows, then escalates selectively (arXiv). Most RAG pipelines run full retrieval on every query, which is exactly the kind of unbounded cost that's killing budgets. A lightweight router in front is one of the highest-ROI changes you can make.
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OpenAI acquired Roi / Shared entity: ROI / Shared topic / Earlier coverage
Linked by a graph relationship (OpenAI acquired Roi); both cover ROI; overlapping topics (budget, cost).
OpenAI acquired Roi / Same source domain / Shared topic
Linked by a graph relationship (OpenAI acquired Roi); reported by the same outlet (arxiv.org); overlapping topics (chang, cost).
OpenAI acquired Roi / Shared entity: ROI / What happened next
Linked by a graph relationship (OpenAI acquired Roi); both cover ROI; picks up the ROI thread on 2026-07-27.
Shared entity: ROI / Shared topic / What happened next / Tension
Both cover ROI; overlapping topics (already, highest-roi); picks up the ROI thread on 2026-06-08.
OpenAI acquired Roi / Shared entity: ROI / Earlier coverage
Linked by a graph relationship (OpenAI acquired Roi); both cover ROI; earlier ROI coverage from 2026-05-28.
Linked by a graph relationship (OpenAI acquired Roi); both cover ROI; earlier ROI coverage from 2026-04-24.
OpenAI acquired Roi / Shared topic / Tension
Linked by a graph relationship (OpenAI acquired Roi); overlapping topics (already, cost); pushes against this story (vs).
Shared entity: ROI / Same source domain / What happened next
Both cover ROI; reported by the same outlet (arxiv.org); picks up the ROI thread on 2026-07-21.