OLMES: A Standard for Language Model Evaluations
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Abstract (arXiv)
Progress in AI is often demonstrated by new models claiming improved performance on tasks measuring model capabilities. Evaluating language models can be particularly challenging, as choices of how a model is evaluated on a task can lead to large changes in measured performance. There is no common standard setup, so different models are evaluated on the same tasks in different ways, leading to claims about which models perform best not being reproducible. We propose OLMES, a completely documented, practical, open standard for reproducible LLM evaluations. In developing this standard, we identify and review the varying factors in evaluation practices adopted by the community - such as details of prompt formatting, choice of in-context examples, probability normalizations, and task formulation. In particular, OLMES supports meaningful comparisons between smaller base models that require the unnatural "cloze" formulation of multiple-choice questions against larger models that can utilize the original formulation. OLMES includes well-considered, documented recommendations guided by results from existing literature as well as new experiments resolving open questions.
Key facts. Cited by 100 papers in the map (data through 7 Oct 2026). Builds on 28 of its 50 references that are in the map. First posted on arXiv 12 Jun 2024.
Builds on
28 of 50 references.
References · 28
- 2020Language Models are Few-Shot Learnerscited by 32,199
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- 2018Think you have Solved Question Answering? Try ARC, the AI2 Reasoning Challengecited by 4,710
- 2019HellaSwag: Can a Machine Really Finish Your Sentence?cited by 4,018
- 2019PIQA: Reasoning about Physical Commonsense in Natural Languagecited by 2,818
- 2019BoolQ: Exploring the Surprising Difficulty of Natural Yes/No Questionscited by 2,140
- 2018Can a Suit of Armor Conduct Electricity? A New Dataset for Open Book Question Answeringcited by 2,114
- 2018CommonsenseQA: A Question Answering Challenge Targeting Commonsense Knowledgecited by 1,793
- 2023Pythia: A Suite for Analyzing Large Language Models Across Training and Scalingcited by 1,734
- 2021GLaM: Efficient Scaling of Language Models with Mixture-of-Expertscited by 890
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- 2023Large Language Models Are Not Robust Multiple Choice Selectorscited by 454
- 2021Surface Form Competition: Why the Highest Probability Answer Isn't Always Rightcited by 256
- 2022Leveraging Large Language Models for Multiple Choice Question Answeringcited by 199
- 2024Lessons from the Trenches on Reproducible Evaluation of Language Modelscited by 172
- 2024When Benchmarks are Targets: Revealing the Sensitivity of Large Language Model Leaderboardscited by 134
- 2024Stable LM 2 1.6B Technical Reportcited by 86
- 2024Can multiple-choice questions really be useful in detecting the abilities of LLMs?cited by 66
- 2024A Study on Large Language Models' Limitations in Multiple-Choice Question Answeringcited by 22
- 2024Unitxt: Flexible, Shareable and Reusable Data Preparation and Evaluation for Generative AIcited by 18
- 2023Increasing Probability Mass on Answer Choices Does Not Always Improve Accuracycited by 11
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Citing papers per year: 2024: 7; 2025: 40; 2026: 53.
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- 2026Efficient Quantization of Mixture-of-Experts with Theoretical Generalization Guarantees7 Apr 2026
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- 2026Towards Scalable Data Diversification for Language Model Pretraining via Leverage Score Sampling26 Sep 2026
- 2026Fine-Tuning LLMs for Translation: General Forgetting Mitigation Does Not Preserve MT-Specific Instruction Following23 Sep 2026
- 2026Time-Incremental Continued Pretraining of LLMs: Knowledge Updates Without Catastrophic Forgetting20 Sep 2026
- 2026OPEN-1B: A Fully Auditable Training Run15 Sep 2026
- 2026To Each Language Its Tokenizer: Modular Tokenizers for Efficient Multilingual LLMs14 Sep 2026
- 2026Format-Aware Fusion for Fast FP4 Pretraining4 Sep 2026
- 2026UE5M3 FP4 Block Scaling for Stable Language Model Pretraining2 Sep 2026
- 2026Stick to What You Know: A Study of Knowledge-Aligned Supervised Fine-Tuning31 Aug 2026
- 2026Check The Scoreboard: An Analysis of Scoring Schemes on Multiple-Choice Evaluation30 Aug 2026
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