Reranker by Contextual AI
The world's first instruction-following reranker
What it does
This is the first reranker that can follow custom instructions about how to rank retrievals (e.g. recency, source, metadata, etc.). Our reranker is the most accurate in the world, outperforming competitors by large margins on the industry-standard benchmarks.
Does the same job
all alternatives →- CAContextual AI Reranker - 1st reranker that follows custom instructions2025 · docs.contextual.ai · ▲5
- WBWe built a better reranker and open sourced it2025 · huggingface.co · ▲6
Hi HN, Our research team just released the best performing and most efficient reranker out there, and it's available now as an open weight model on HuggingFace. Reranker v2 was designed specifically for agentic RAG, supports instruction following (our v1 was the first to introduce this), and is multilingual. Along with this, we're also open source our eval set, which allows you to reproduce our benchmark results. By releasing these datasets, we are also advancing instruction-following reranking evaluation, where high-quality benchmarks are currently limited. Please give it a try and let us…
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