zerank-1-small-seq

Internal DevRev mirror of zeroentropy/zerank-1-small.

Original model by ZeroEntropy — released under Apache 2.0.

Model details

Property Value
Parameters 1.7B
Context length 32,768 tokens
Base model Qwen/Qwen3-4B
Tensor type BF16
License Apache-2.0

Usage

from sentence_transformers import CrossEncoder

model = CrossEncoder("devrev/zerank-1-small-seq")

query = "Which planet is known as the Red Planet?"
passages = [
    "Venus is often called Earth's twin...",
    "Mars, known for its reddish appearance, is often referred to as the Red Planet.",
]

scores = model.predict([(query, passage) for passage in passages])
print(scores)

Performance (NDCG@10)

Domain Score
Finance 0.861
Legal 0.817
Medical 0.773
Code 0.730
STEM 0.680
Conversational 0.556
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