Open Ko-LLM Leaderboard: Evaluating Large Language Models in Korean with Ko-H5 Benchmark
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Abstract (arXiv)
This paper introduces the Open Ko-LLM Leaderboard and the Ko-H5 Benchmark as vital tools for evaluating Large Language Models (LLMs) in Korean. Incorporating private test sets while mirroring the English Open LLM Leaderboard, we establish a robust evaluation framework that has been well integrated in the Korean LLM community. We perform data leakage analysis that shows the benefit of private test sets along with a correlation study within the Ko-H5 benchmark and temporal analyses of the Ko-H5 score. Moreover, we present empirical support for the need to expand beyond set benchmarks. We hope the Open Ko-LLM Leaderboard sets precedent for expanding LLM evaluation to foster more linguistic diversity.
Key facts. Cited by 23 papers in the map (data through 7 Oct 2026). Builds on 19 of its 28 references that are in the map. First posted on arXiv 31 May 2024.
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References · 19
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Citing papers per year: 2024: 5; 2025: 13; 2026: 5.
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- 2025Understand, Solve and Translate: Bridging the Multilingual Mathematical Reasoning Gapcited by 41
- 2025KoBALT: Korean Benchmark For Advanced Linguistic Taskscited by 12
- 2024Open Ko-LLM Leaderboard2: Bridging Foundational and Practical Evaluation for Korean LLMscited by 6
- 2025From KMMLU-Redux to KMMLU-Pro: A Professional Korean Benchmark Suite for LLM Evaluationcited by 6
- 2024Can Code-Switched Texts Activate a Knowledge Switch in LLMs? A Case Study on English-Korean Code-Switchingcited by 5
- 2025TLUE: A Tibetan Language Understanding Evaluation Benchmarkcited by 5
- 2024Developing a Pragmatic Benchmark for Assessing Korean Legal Language Understanding in Large Language Modelscited by 4
- 2025Multi-Step Reasoning in Korean and the Emergent Miragecited by 4
- 2025Revitalizing Saturated Benchmarks: A Weighted Metric Approach for Differentiating Large Language Model Performancecited by 4
- 2025Language Surgery in Multilingual Large Language Modelscited by 4
- 2026TurkBench: A Benchmark for Evaluating Turkish Large Language Modelscited by 4
- 2025SciEvalKit: An Open-source Evaluation Toolkit for Scientific General Intelligencecited by 3
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- 2024Understanding LLM Development Through Longitudinal Study: Insights from the Open Ko-LLM Leaderboardcited by 2
- 2024Representing the Under-Represented: Cultural and Core Capability Benchmarks for Developing Thai Large Language Modelscited by 2
- 2025Evaluating Multimodal Generative AI with Korean Educational Standardscited by 2
- 2025KAIO: A Collection of More Challenging Korean Questionscited by 1
- 2026K-FinHallu: A Hallucination Detection Benchmark for Multi-Turn RAG in Korean Financecited by 1
- 2025KFinEval-Pilot: A Comprehensive Benchmark Suite for Korean Financial Language Understandingcited by 0
- 2025Making Sense of Korean Sentences: A Comprehensive Evaluation of LLMs through KoSEnd Datasetcited by 0
- 2025KITE: A Benchmark for Evaluating Korean Instruction-Following Abilities in Large Language Modelscited by 0
- 2026HumorRank: A Tournament-Based Leaderboard for Evaluating Humor Generation in Large Language Modelscited by 0
- 2026Llamion Technical Reportcited by 0
- 2026KoNeoBench: A Curated Evaluation Dataset for LLM Understanding of Korean Neologismscited by 0
- 2026KoNeoBench: A Curated Evaluation Dataset for LLM Understanding of Korean Neologisms17 Sep 2026
- 2026K-FinHallu: A Hallucination Detection Benchmark for Multi-Turn RAG in Korean Finance28 May 2026
- 2026Llamion Technical Report25 May 2026
- 2026HumorRank: A Tournament-Based Leaderboard for Evaluating Humor Generation in Large Language Models31 Mar 2026
- 2026TurkBench: A Benchmark for Evaluating Turkish Large Language Models11 Jan 2026
- 2025SciEvalKit: An Open-source Evaluation Toolkit for Scientific General Intelligence26 Dec 2025
- 2025KITE: A Benchmark for Evaluating Korean Instruction-Following Abilities in Large Language Models17 Oct 2025
- 2025KAIO: A Collection of More Challenging Korean Questions18 Sep 2025
- 2025From KMMLU-Redux to KMMLU-Pro: A Professional Korean Benchmark Suite for LLM Evaluation11 Jul 2025
- 2025Making Sense of Korean Sentences: A Comprehensive Evaluation of LLMs through KoSEnd Dataset4 Jul 2025
- 2025Language Surgery in Multilingual Large Language Models14 Jun 2025
- 2025KoBALT: Korean Benchmark For Advanced Linguistic Tasks22 May 2025
11 more
- 2025KFinEval-Pilot: A Comprehensive Benchmark Suite for Korean Financial Language Understanding17 Apr 2025
- 2025TLUE: A Tibetan Language Understanding Evaluation Benchmark15 Mar 2025
- 2025Revitalizing Saturated Benchmarks: A Weighted Metric Approach for Differentiating Large Language Model Performance7 Mar 2025
- 2025Evaluating Multimodal Generative AI with Korean Educational Standards21 Feb 2025
- 2025Multi-Step Reasoning in Korean and the Emergent Mirage10 Jan 2025
- 2025Understand, Solve and Translate: Bridging the Multilingual Mathematical Reasoning Gap5 Jan 2025
- 2024Can Code-Switched Texts Activate a Knowledge Switch in LLMs? A Case Study on English-Korean Code-Switching24 Oct 2024
- 2024Open Ko-LLM Leaderboard2: Bridging Foundational and Practical Evaluation for Korean LLMs16 Oct 2024
- 2024Developing a Pragmatic Benchmark for Assessing Korean Legal Language Understanding in Large Language Models11 Oct 2024
- 2024Representing the Under-Represented: Cultural and Core Capability Benchmarks for Developing Thai Large Language Models7 Oct 2024
- 2024Understanding LLM Development Through Longitudinal Study: Insights from the Open Ko-LLM Leaderboard5 Sep 2024
- 2025KoBALT: Korean Benchmark For Advanced Linguistic Taskscited by 12
- 2024Open Ko-LLM Leaderboard2: Bridging Foundational and Practical Evaluation for Korean LLMscited by 6
- 2025From KMMLU-Redux to KMMLU-Pro: A Professional Korean Benchmark Suite for LLM Evaluationcited by 6
- 2024Can Code-Switched Texts Activate a Knowledge Switch in LLMs? A Case Study on English-Korean Code-Switchingcited by 5
- 2025TLUE: A Tibetan Language Understanding Evaluation Benchmarkcited by 5
- 2024Developing a Pragmatic Benchmark for Assessing Korean Legal Language Understanding in Large Language Modelscited by 4
- 2025Revitalizing Saturated Benchmarks: A Weighted Metric Approach for Differentiating Large Language Model Performancecited by 4
- 2025Language Surgery in Multilingual Large Language Modelscited by 4
- 2026TurkBench: A Benchmark for Evaluating Turkish Large Language Modelscited by 4
- 2025SciEvalKit: An Open-source Evaluation Toolkit for Scientific General Intelligencecited by 3
- 2024Understanding LLM Development Through Longitudinal Study: Insights from the Open Ko-LLM Leaderboardcited by 2
- 2024Representing the Under-Represented: Cultural and Core Capability Benchmarks for Developing Thai Large Language Modelscited by 2
12 most cited of 20 All 20 (JSON)
- 2026KoNeoBench: A Curated Evaluation Dataset for LLM Understanding of Korean Neologisms17 Sep 2026
- 2026Llamion Technical Report25 May 2026
- 2026HumorRank: A Tournament-Based Leaderboard for Evaluating Humor Generation in Large Language Models31 Mar 2026
- 2026TurkBench: A Benchmark for Evaluating Turkish Large Language Models11 Jan 2026
- 2025SciEvalKit: An Open-source Evaluation Toolkit for Scientific General Intelligence26 Dec 2025
- 2025KITE: A Benchmark for Evaluating Korean Instruction-Following Abilities in Large Language Models17 Oct 2025
- 2025KAIO: A Collection of More Challenging Korean Questions18 Sep 2025
- 2025From KMMLU-Redux to KMMLU-Pro: A Professional Korean Benchmark Suite for LLM Evaluation11 Jul 2025
- 2025Making Sense of Korean Sentences: A Comprehensive Evaluation of LLMs through KoSEnd Dataset4 Jul 2025
- 2025Language Surgery in Multilingual Large Language Models14 Jun 2025
- 2025KoBALT: Korean Benchmark For Advanced Linguistic Tasks22 May 2025
- 2025KFinEval-Pilot: A Comprehensive Benchmark Suite for Korean Financial Language Understanding17 Apr 2025
12 newest of 20 All 20 (JSON)