Linkup open-sources SPARSEUP, a <150M sparse retriever scoring 56+ on BEIR-13
antoine_chaffin · x · 2026-09-17
Linkup's research team released SPARSEUP, its first model and the sparse companion to DenseOn and LateOn, filling a gap in the open-source community. Same backbone and data, under 150M parameters, scoring 56+ on BEIR-13 and claimed as the strongest public sparse retriever at this size. Released under Apache 2.0 with blog and model links.
Related event: Linkup Open-Sources SparseUp: 149M-Parameter Sparse Retriever Tops BEIR-13(12 posts)→
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