LightOn Releases Multimodal Reranker
tomaarsen · x · 2026-07-17
LightOnIO has released LightOn-rerank: a set of rerankers designed to score text passages or document page images against a given query.
- A total of 6 models, available in 0.8B / 2B / 4B scales;
- Each scale offers both pointwise and generative listwise versions;
- Ideal for text ↔ image retrieval.
The author also notes that the 4B listwise model achieved 64.69 on ViDoRe V3 NDCG@10, slightly outperforming the standard 8B VL Reranker (64.23 under the same protocol) while using only half the parameters.
Related event: LightOn-rerank Targets Mixed-Corpus RAG With Multimodal Rerankers(10 posts)→
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