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MMLU-redux-2.0

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Interactive timeline showing model performance evolution on MMLU-redux-2.0

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MMLU-redux-2.0 Leaderboard

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Moonshot AI
Moonshot AI
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About this benchmark

What is MMLU-redux-2.0?

A curated version of the MMLU benchmark featuring manually re-annotated 5,700 questions across 57 subjects to identify and correct errors in the original dataset. Addresses the 6.49% error rate found in MMLU and provides more reliable evaluation metrics for language models.

MMLU-redux-2.0 is a text benchmark evaluating models on language, math, reasoning, and general tasks. LLM Stats tracks 1 models on this benchmark, scored on a 0–1 scale. The current average is 0.9, with the leader at 0.9.

Compare leaders on the best AI for language, best AI for math, best AI for reasoning and best AI for general leaderboards.

Current leaders

Kimi K2 Base from Moonshot AI currently leads the MMLU-redux-2.0 leaderboard with a score of 0.902 across 1 evaluated AI models.

1Kimi K2 BaseMoonshot AI90.2%

Source paper

Title
Are We Done with MMLU?
Authors
Aryo Pradipta Gema, Joshua Ong Jun Leang, Giwon Hong, Alessio Devoto, and 12 others
Published
Abstract

Maybe not. We identify and analyse errors in the popular Massive Multitask Language Understanding (MMLU) benchmark. Even though MMLU is widely adopted, our analysis demonstrates numerous ground truth errors that obscure the true capabilities of LLMs. For example, we find that 57% of the analysed questions in the Virology subset contain errors. To address this issue, we introduce a comprehensive framework for identifying dataset errors using a novel error annotation protocol. Then, we create MMLU-Redux, which is a subset of 5,700 manually re-annotated questions across all 57 MMLU subjects. We estimate that 6.49% of MMLU questions contain errors. Using MMLU-Redux, we demonstrate significant discrepancies with the model performance metrics that were originally reported. Our results strongly advocate for revising MMLU's error-ridden questions to enhance its future utility and reliability as a benchmark. https://huggingface.co/datasets/edinburgh-dawg/mmlu-redux-2.0.

FAQ

Common questions about the MMLU-redux-2.0 benchmark and leaderboard.

What is the MMLU-redux-2.0 benchmark?

A curated version of the MMLU benchmark featuring manually re-annotated 5,700 questions across 57 subjects to identify and correct errors in the original dataset. Addresses the 6.49% error rate found in MMLU and provides more reliable evaluation metrics for language models.

What is the MMLU-redux-2.0 leaderboard?

The MMLU-redux-2.0 leaderboard ranks 1 AI models based on their performance on this benchmark. Currently, Kimi K2 Base by Moonshot AI leads with a score of 0.902. The average score across all models is 0.902.

What is the highest MMLU-redux-2.0 score?

The highest MMLU-redux-2.0 score is 0.902, achieved by Kimi K2 Base from Moonshot AI.

How many models are evaluated on MMLU-redux-2.0?

1 models have been evaluated on the MMLU-redux-2.0 benchmark, with 0 verified results and 1 self-reported results.

Where can I find the MMLU-redux-2.0 paper?

The MMLU-redux-2.0 paper is available at https://arxiv.org/abs/2406.04127. The paper details the methodology, dataset construction, and evaluation criteria.

What categories does MMLU-redux-2.0 cover?

MMLU-redux-2.0 is categorized under language, math, reasoning, and general. The benchmark evaluates text models.

What is the best open-source model on MMLU-redux-2.0?

Kimi K2 Base by Moonshot AI is the top-ranked open-source model on MMLU-redux-2.0, with a score of 0.902 (rank #1).

How recent are the MMLU-redux-2.0 leaderboard results?

The MMLU-redux-2.0 leaderboard was last updated in September 2026 and currently includes 1 evaluated models.