AntiLeakBench: Preventing Data Contamination by Automatically Constructing Benchmarks with Updated Real-World Knowledge
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Abstract (arXiv)
Data contamination hinders fair LLM evaluation by introducing test data into newer models' training sets. Existing studies solve this challenge by updating benchmarks with newly collected data. However, they fail to guarantee contamination-free evaluation as the newly collected data may contain pre-existing knowledge, and their benchmark updates rely on intensive human labor. To address these issues, we in this paper propose AntiLeak-Bench, an automated anti-leakage benchmarking framework. Instead of simply using newly collected data, we construct samples with explicitly new knowledge absent from LLMs' training sets, which thus ensures strictly contamination-free evaluation. We further design a fully automated workflow to build and update our benchmark without human labor. This significantly reduces the cost of benchmark maintenance to accommodate emerging LLMs. Through extensive experiments, we highlight that data contamination likely exists before LLMs' cutoff time and demonstrate AntiLeak-Bench effectively overcomes this challenge.
Key facts. Cited by 42 papers in the map (data through 7 Oct 2026). Builds on 40 of its 61 references that are in the map. First posted on arXiv 18 Dec 2024.
Builds on
40 of 61 references.
References · 40
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Citing papers per year: 2024: 1; 2025: 22; 2026: 19.
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- 2026From 0-Order Selection to 2-Order Judgment: Combinatorial Hardening Exposes Compositional Failures in Frontier LLMs8 May 2026
- 2026Can David Beat Goliath? On Multi-Hop Reasoning with Resource-Constrained Agents29 Jan 2026
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- 2025Test of Time: Rethinking Temporal Signal of Benchmark Contaminationcited by 3
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- 2025SCOPE: Compress Mathematical Reasoning Steps for Efficient Automated Process Annotationcited by 1
- 2025DynaSolidGeo: A Dynamic Benchmark for Genuine Spatial Mathematical Reasoning of VLMs in Solid Geometrycited by 1
- 2026Can David Beat Goliath? On Multi-Hop Reasoning with Resource-Constrained Agentscited by 1
- 2026Scaling Large Reasoning Models beyond Human Supervision: A Path toward Superintelligence31 Aug 2026
- 2026Can David Beat Goliath? On Multi-Hop Reasoning with Resource-Constrained Agents29 Jan 2026
- 2025DynaSolidGeo: A Dynamic Benchmark for Genuine Spatial Mathematical Reasoning of VLMs in Solid Geometry25 Oct 2025
- 2025Unsupervised Hallucination Detection by Inspecting Reasoning Processes12 Sep 2025
- 2025Test of Time: Rethinking Temporal Signal of Benchmark Contamination26 Aug 2025
- 2025Lean Meets Theoretical Computer Science: Scalable Synthesis of Theorem Proving Challenges in Formal-Informal Pairs21 Aug 2025
- 2025SCOPE: Compress Mathematical Reasoning Steps for Efficient Automated Process Annotation20 May 2025
- 2025Full-Step-DPO: Self-Supervised Preference Optimization with Step-wise Rewards for Mathematical Reasoning20 Feb 2025
- 2025CutPaste&Find: Efficient Multimodal Hallucination Detector with Visual-aid Knowledge Base18 Feb 2025
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- 2026RECLAIM: Can Agents Reproduce the Claims of Machine Learning Papers?23 Sep 2026
- 2026Autonomous Research Agents: A Survey of AI Scientists and the Verification Gap29 Jun 2026
- 2026ForeSci: Evaluating LLM Agents for Forward-Looking AI Research Judgment30 May 2026
- 2025DyePack: Provably Flagging Test Set Contamination in LLMs Using Backdoorscited by 3
- 2026Pretraining Data Exposure in Large Language Models: A Survey of Membership Inference, Data Contamination, and Security Implicationscited by 1
- 2026Uncertainty-based Debiasing and Unlearning for Decontaminationcited by 0
- 2026Uncertainty-based Debiasing and Unlearning for Decontamination22 Jun 2026
- 2026Pretraining Data Exposure in Large Language Models: A Survey of Membership Inference, Data Contamination, and Security Implications21 May 2026
- 2025DyePack: Provably Flagging Test Set Contamination in LLMs Using Backdoors29 May 2025
- 2025Recent Advances in Large Langauge Model Benchmarks against Data Contamination: From Static to Dynamic Evaluationcited by 38
- 2025Toward Generalizable Evaluation in the LLM Era: A Survey Beyond Benchmarkscited by 26
- 2024MRAG: A Modular Retrieval Framework for Time-Sensitive Question Answeringcited by 17
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- 2025VCBench: Benchmarking LLMs in Venture Capitalcited by 3
- 2025CoreEval: Automatically Building Contamination-Resilient Datasets with Real-World Knowledge toward Reliable LLM Evaluationcited by 3
- 2025LexGenius: An Expert-Level Benchmark for Large Language Models in Legal General Intelligencecited by 3
- 2025The Ever-Evolving Science Examcited by 2
- 2026LLM Benchmark Datasets Should Be Contamination-Resistantcited by 2
- 2025MatheMagic: Generating Dynamic Mathematics Benchmarks Robust to Memorizationcited by 1
- 2025Individualized Cognitive Simulation in Large Language Models: Evaluating Different Cognitive Representation Methodscited by 1
12 most cited of 23 All 23 (JSON)
- 2026Uncheatable Eval: Dynamic Compression-Based Evaluation of Language Models23 Sep 2026
- 2026Bad Genius: Counterfactual-Guided Harness Evolution Beyond Task-Specific Shortcuts16 Sep 2026
- 2026GDPevo: Evaluating Agent Self-Evolution on Real Business Tasks4 Aug 2026
- 2026Temporal Leakage in LLM Backtesting: Measurement, Validation, and Adjusted Scores4 Aug 2026
- 2026ContinuousBench: Can Differentially Private Synthetic Text Improve Capabilities?1 Jun 2026
- 2026LLM Benchmark Datasets Should Be Contamination-Resistant19 May 2026
- 2026Likelihood scoring for continuations of mathematical text: a self-supervised benchmark with tests for shortcut vulnerabilities11 May 2026
- 2026From 0-Order Selection to 2-Order Judgment: Combinatorial Hardening Exposes Compositional Failures in Frontier LLMs8 May 2026
- 2026GLEAN: Grounded Lightweight Evaluation Anchors for Contamination-Aware Tabular Reasoning22 Jan 2026
- 2026How Do Large Language Models Learn Concepts During Continual Pre-Training?7 Jan 2026
- 2025LexGenius: An Expert-Level Benchmark for Large Language Models in Legal General Intelligence4 Dec 2025
- 2025CoreEval: Automatically Building Contamination-Resilient Datasets with Real-World Knowledge toward Reliable LLM Evaluation24 Nov 2025
12 newest of 23 All 23 (JSON)