Cohere Rerank 4 Fast
Fast cross-encoder reranker for enterprise search and RAG, built for low-latency production workloads. Supports up to 32K context and strong multilingual retrieval across 100+ languages, with optional self-learning to adapt to your domain over time.
Model Information
- Provider
- Cohere
- License
- Proprietary
- Price per 1M tokens
- $0.050
- Release Date
- 2025-12-11
- Model Name
- rerank-v4.0-fast
- Total Evaluations
- 3000
Performance Record
Wins1480 (49.3%)
Losses1415 (47.2%)
Ties105 (3.5%)
Wins
Losses
Ties
Performance Overview
ELO ratings by dataset
Cohere Rerank 4 Fast's ELO performance varies across different benchmark datasets, showing its strengths in specific domains.
Cohere Rerank 4 Fast - ELO by Dataset
Detailed Metrics
Dataset breakdown
Performance metrics across different benchmark datasets, including accuracy and latency percentiles.
DBPedia
ELO 160342.8% WR214W-249L-37T
Latency Distribution
- Mean
- 297ms
- P50 (Median)
- 297ms
- P90
- 309ms
business reports
ELO 157956.0% WR280W-210L-10T
Latency Distribution
- Mean
- 428ms
- P50 (Median)
- 408ms
- P90
- 550ms
MSMARCO
ELO 151345.2% WR226W-227L-47T
Latency Distribution
- Mean
- 403ms
- P50 (Median)
- 382ms
- P90
- 486ms
PG
ELO 145642.0% WR210W-290L-0T
Latency Distribution
- Mean
- 492ms
- P50 (Median)
- 439ms
- P90
- 650ms
FiQa
ELO 144352.4% WR262W-229L-9T
Latency Distribution
- Mean
- 485ms
- P50 (Median)
- 459ms
- P90
- 624ms
arguana
ELO 144357.6% WR288W-210L-2T
Latency Distribution
- Mean
- 574ms
- P50 (Median)
- 562ms
- P90
- 728ms
Compare Models
See how it stacks up
Compare Cohere Rerank 4 Fast with other top rerankers to understand the differences in performance, accuracy, and latency.