mSlideOn: multilingual sparse retriever beats its dense counterpart on most tasks

IgorCarron · x · 2026-10-19

paulomouraj's team released mSlideOn, a multilingual sparse retriever achieving SOTA or competitive results vs dense and sparse baselines. Trained with matched data and distillation, it largely beats the dense mDenseOn: +4.76 on MIRACL, +10.19 on long-context MLDR, +3.24 on MTEB Code (nDCG@10), trailing only -0.70 on English BEIR-15.

Related event: LightOn Open-Sources SOTA Sparse Retrievers SlideOn and mSlideOn(8 posts)→

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