Zerank 1
Flagship 4B parameter cross-encoder with multi-stage training pipeline modeling relevance as ELO ratings. Strong performance across specialized domains: Finance, Legal, Code, STEM, and Medical. If you want to compare the best rerankers for your data, try Agentset.
Model Information
- Provider
- ZeroEntropy
- License
- cc-by-nc-4.0
- Price per 1M tokens
- $0.025
- Release Date
- 2025-07-10
- Model Name
- zerank-1
- Total Evaluations
- 3300
Performance Record
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Performance Overview
ELO ratings by dataset
Zerank 1's ELO performance varies across different benchmark datasets, showing its strengths in specific domains.
Zerank 1 - ELO by Dataset
Detailed Metrics
Dataset breakdown
Performance metrics across different benchmark datasets, including accuracy and latency percentiles.
arguana
Accuracy Metrics
- nDCG@5
- 0.308
- nDCG@10
- 0.369
- Recall@5
- 0.580
- Recall@10
- 0.760
Latency Distribution
- Mean
- 287ms
- P50 (Median)
- 275ms
- P90
- 332ms
PG
Accuracy Metrics
- nDCG@5
- 0.000
- nDCG@10
- 0.000
- Recall@5
- 0.000
- Recall@10
- 0.000
Latency Distribution
- Mean
- 293ms
- P50 (Median)
- 279ms
- P90
- 348ms
FiQa
Accuracy Metrics
- nDCG@5
- 0.115
- nDCG@10
- 0.121
- Recall@5
- 0.105
- Recall@10
- 0.125
Latency Distribution
- Mean
- 259ms
- P50 (Median)
- 258ms
- P90
- 276ms
business reports
Accuracy Metrics
- nDCG@5
- 0.000
- nDCG@10
- 0.000
- Recall@5
- 0.000
- Recall@10
- 0.000
Latency Distribution
- Mean
- 289ms
- P50 (Median)
- 272ms
- P90
- 363ms
DBPedia
Accuracy Metrics
- nDCG@5
- 0.000
- nDCG@10
- 0.000
- Recall@5
- 0.000
- Recall@10
- 0.000
Latency Distribution
- Mean
- 238ms
- P50 (Median)
- 233ms
- P90
- 257ms
MSMARCO
Accuracy Metrics
- nDCG@5
- 0.000
- nDCG@10
- 0.000
- Recall@5
- 0.000
- Recall@10
- 0.000
Latency Distribution
- Mean
- 232ms
- P50 (Median)
- 226ms
- P90
- 245ms
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import { Agentset } from "agentset";
const agentset = new Agentset();
const ns = agentset.namespace("ns_1234");
const results = await ns.search(
"What is multi-head attention?"
);
for (const result of results) {
console.log(result.text);
}Compare Models
See how it stacks up
Compare Zerank 1 with other top rerankers to understand the differences in performance, accuracy, and latency.