GreekMMLU

21,805 multiple-choice questions natively sourced or authored in Greek from real exams across 45 subjects, built specifically to avoid the translation artefacts of machine-translated Greek benchmarks.

Also known as: Greek MMLU, GMMLU

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Categoryknowledge
Subcategorynative-sourced Greek multitask academic, professional and governmental exam knowledge
Page statusactive
Metricaccuracy
Directionhigher_is_better
Unit%
Dataset size16857
Dataset licenceMIT, per the Hugging Face dataset card; the paper states source materials were collected only from content released under open-access or educational-reuse terms, without naming a single licence for the compiled dataset
PublisherEcole Polytechnique, MBZUAI and the National Technical University of Athens, with the University of Ioannina and the University of Peloponnese

What it measures

GreekMMLU tests broad academic, professional and civic knowledge in Greek using four-option multiple-choice questions drawn from real Greek academic, professional and governmental examinations, spanning difficulty from primary school to professional licensing. Its authors built it specifically because they judged existing Greek-language evaluation material to be largely machine-translated from English, which they argue fails to capture Greek linguistic and cultural specifics -- the 45 subjects include several with no English-language equivalent to translate from at all, such as Greek driving regulations, Greek mythology, Greek traditions and Greek civil-service exam content, alongside standard STEM, humanities and social-science subjects. This page confirms, from the paper's own abstract and dataset card, that GreekMMLU is native-sourced rather than translated by any method, machine or human: every question was collected or authored directly in Greek, which changes how a score on it should be read compared with a benchmark built by translating an existing English test.

Task format

Four-option multiple-choice question answering in Greek, following Greek examination convention (answer labels mix Latin and Greek letters, A, B, Gamma, Delta). Evaluated both zero-shot and five-shot, with prompts written entirely in Greek. Open-weight models are scored by a rank-based comparison of answer-option log-likelihoods; closed API models are scored by free-form generation with the predicted label extracted by regular expression.

Models reporting this benchmark

No model card in ModelSpec reports this benchmark yet.

Data

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