Voyage AIrerank-2.5 is a reranker optimized for quality, delivering a 7.94% improvement in retrieval accuracy over Cohere Rerank v3.5 across 93 datasets and 12.70% on the Massive Instructed Retrieval Benchmark (MAIR). It supports a combined context length of 32K tokens per query-document pair, including up to 8K tokens for the query, and follows instructions that guide relevance scoring.
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