jina-reranker-v3: Last but Not Late Interaction for Listwise Document Reranking

Feng Wang; Yuqing Li; Han Xiao

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arXiv · 2509.25085

jina-reranker-v3: Last but Not Late Interaction for Listwise Document Reranking

Feng Wang·Yuqing Li·Han Xiao

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Abstract

jina-reranker-v3 is a 0.6B-parameter multilingual listwise reranker that introduces a novel "last but not late" interaction. Unlike late interaction models like ColBERT that encode documents separately before multi-vector matching, our approach applies causal attention between the query and all candidate documents in the same context window, enabling rich interactions before extracting contextual embeddings from each document's final token. The new model achieves state-of-the-art BEIR performance with 61.94 nDCG@10 while being significantly smaller than other models with comparable performance.

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Feng Wang, Yuqing Li, Han Xiao. 2025-09-29. jina-reranker-v3: Last but Not Late Interaction for Listwise Document Reranking. https://arxiv.org/abs/2509.25085

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