# Cohere Rerank

> Proprietary neural network reranker accessed via API that processes query and document together as a cross-encoder to precisely judge relevance. Supports over 100 languages with Rerank 3 Nimble variant for faster production performance.

- **URL:** https://cohere.com/rerank
- **Category:** LLM Tools
- **Tags:** Reranking, api, multilingual
- **Updated:** 2026-03-11 13:24
- **Canonical page:** https://vectordb.ever.works/it/items/cohere-rerank

## Details

## Overview

Cohere Rerank is a sophisticated neural network reranker, likely based on transformer architecture, that acts as a cross-encoder to improve retrieval quality in RAG systems. It's accessed via a managed API without requiring self-hosting.

## Features

- **Cross-Encoder**: Jointly processes query and document for accurate relevance
- **Multilingual**: Supports over 100 languages
- **Managed API**: No infrastructure management required
- **Fast Response**: Rerank 3 Nimble offers 595-603ms average latency
- **Production Ready**: Built for scale with SLAs
- **Easy Integration**: Simple API calls
- **High Accuracy**: Consistently top-performing in benchmarks

## Model Variants

- **Rerank 3**: Latest generation with improved accuracy
- **Rerank 3 Nimble**: Optimized for faster performance in production
- **Rerank 3.5**: Newest version with enhanced capabilities

## Performance

Voyage Rerank 2.5 and Cohere Rerank 3.5 offer the fastest response times at around 595-603ms average latency while maintaining high accuracy.

## Use Cases

- Production RAG systems where reliability matters
- Multi-language applications
- High-volume search systems
- Enterprise applications with SLA requirements
- Applications requiring minimal infrastructure management

## Integration

Works with LangChain, LlamaIndex, and custom applications. Simple REST API integration.

## Recommendations

Use Cohere Rerank 3.5 when budget is not the constraint, as you're paying for reliability with managed infrastructure and SLAs that matter more than latency at scale.

## Pricing

Usage-based API pricing with different tiers. Free trial available for testing.

---

_This Markdown mirror is generated by Ever Works for AI agents. The canonical HTML page is at https://vectordb.ever.works/it/items/cohere-rerank._