Evidence map›Paper›PMID 42254963›Full record

ArticleInnovation (Cambridge (Mass.))2026

A survey on LLM-as-a-judge.

Jiawei Gu, Xuhui Jiang, Zhichao Shi, Hexiang Tan, Xuehao Zhai, Chengjin Xu, Wei Li, Yinghan Shen, Shengjie Ma, Honghao Liu and 8 more

Abstract read
In one paragraph

Article in Innovation (Cambridge (Mass.)), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

29 citing papers in PubMed.

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  16. Language models reveal evidence gaps in variants of uncertain significance.medRxiv : the preprint server for health sciences · 2026
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

18 authors.

Jiawei GuIDEA Research, Shenzhen, China.
Xuhui JiangIDEA Research, Shenzhen, China.
Zhichao ShiIDEA Research, Shenzhen, China.
Hexiang TanICT, Chinese Academy of Sciences, Beijing, China.
Xuehao ZhaiDepartment of Civil and Environmental Engineering, Imperial College London, London, UK.
Chengjin XuIDEA Research, Shenzhen, China.
Wei LiICT, Chinese Academy of Sciences, Beijing, China.
Yinghan ShenICT, Chinese Academy of Sciences, Beijing, China.
Shengjie MaIDEA Research, Shenzhen, China.
Honghao LiuIDEA Research, Shenzhen, China.
Saizhuo WangIDEA Research, Shenzhen, China.
Kun ZhangICT, Chinese Academy of Sciences, Beijing, China.
Zhouchi LinIDEA Research, Shenzhen, China.
Bowen ZhangIDEA Research, Shenzhen, China.
Lionel NiHKUST, Hong Kong, China.
Wen GaoDepartment of Computer Science and Technology, Peking University, Beijing, China.
Yuanzhuo WangICT, Chinese Academy of Sciences, Beijing, China.
Jian GuoIDEA Research, Shenzhen, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Accurate and consistent evaluation is crucial for decision-making across numerous fields, yet it remains challenging due to inherent subjectivity, variability, and scale. Large language models (LLMs) have achieved remarkable success, leading to "LLM-as-a-judge," where LLMs serve as evaluators for complex tasks. With their ability to process diverse data types and provide scalable assessments, LLMs present a compelling alternative to traditional expert-driven evaluations. However, ensuring the reliability of LLM-as-a-judge systems remains a significant challenge requiring careful design and standardization. This paper provides a comprehensive survey of LLM-as-a-judge, offering a formal definition and detailed classification while addressing the core question of how to build reliable LLM-as-a-judge systems. We explore strategies to enhance reliability, including improving consistency, mitigating biases, and adapting to diverse scenarios. We propose methodologies for evaluating reliability, supported by a novel benchmark. To advance development and deployment, we discuss practical applications, challenges, and future directions. Our contributions span multiple levels: we establish conceptual boundaries, reorganize fragmented literature into a unified framework, and propose a reliability-oriented benchmark. We articulate a forward-looking research agenda, offering theoretical foundations and practical guidance for constructing reliable and trustworthy LLM-as-a-judge systems.

Indexed as

automated evaluationlarge language modelsLLM-as-a-judgereliability assessmenttrustworthy AI

Identifiers

PMID42254963
PMCPMC13237853

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.