MMLU-STEM

STEM-focused subset of the Massive Multitask Language Understanding benchmark, evaluating language models on science, technology, engineering, and mathematics topics including physics, chemistry, mathematics, and other technical subjects.

Qwen2.5 32B Instruct from Alibaba Cloud / Qwen Team currently leads the MMLU-STEM leaderboard with a score of 0.809 across 2 evaluated AI models.

Paper
About this benchmark

What MMLU-STEM measures

MMLU-STEM is a text benchmark that evaluates large language models on math, physics, reasoning, and chemistry tasks. LLM Stats tracks 2 models on this benchmark, with a maximum possible score of 1. Current average across reported models is 0.8, with the leader reaching 0.8.

Compare leaders on the best AI for math, best AI for physics, best AI for reasoning and best AI for chemistry leaderboards.

Publication

Paper
Measuring Massive Multitask Language Understanding
Authors
Dan Hendrycks, Collin Burns, Steven Basart, Andy Zou, and 3 others
Published

Abstract

We propose a new test to measure a text model's multitask accuracy. The test covers 57 tasks including elementary mathematics, US history, computer science, law, and more. To attain high accuracy on this test, models must possess extensive world knowledge and problem solving ability. We find that while most recent models have near random-chance accuracy, the very largest GPT-3 model improves over random chance by almost 20 percentage points on average. However, on every one of the 57 tasks, the best models still need substantial improvements before they can reach expert-level accuracy. Models also have lopsided performance and frequently do not know when they are wrong. Worse, they still have near-random accuracy on some socially important subjects such as morality and law. By comprehensively evaluating the breadth and depth of a model's academic and professional understanding, our test can be used to analyze models across many tasks and to identify important shortcomings.

Alibaba Cloud / Qwen TeamQwen2.5 32B Instruct leads with 80.9%, followed by Alibaba Cloud / Qwen TeamQwen2.5 14B Instruct at 76.4%.

Progress Over Time

Interactive timeline showing model performance evolution on MMLU-STEM

State-of-the-art frontier
Open
Proprietary

MMLU-STEM Leaderboard

2 models
ContextCostLicense
1
Alibaba Cloud / Qwen Team
Alibaba Cloud / Qwen Team
33B
2
Alibaba Cloud / Qwen Team
Alibaba Cloud / Qwen Team
15B
Notice missing or incorrect data?

FAQ

Common questions about MMLU-STEM.

What is the MMLU-STEM benchmark?

STEM-focused subset of the Massive Multitask Language Understanding benchmark, evaluating language models on science, technology, engineering, and mathematics topics including physics, chemistry, mathematics, and other technical subjects.

What is the MMLU-STEM leaderboard?

The MMLU-STEM leaderboard ranks 2 AI models based on their performance on this benchmark. Currently, Qwen2.5 32B Instruct by Alibaba Cloud / Qwen Team leads with a score of 0.809. The average score across all models is 0.786.

What is the highest MMLU-STEM score?

The highest MMLU-STEM score is 0.809, achieved by Qwen2.5 32B Instruct from Alibaba Cloud / Qwen Team.

How many models are evaluated on MMLU-STEM?

2 models have been evaluated on the MMLU-STEM benchmark, with 0 verified results and 2 self-reported results.

Where can I find the MMLU-STEM paper?

The MMLU-STEM paper is available at https://arxiv.org/abs/2009.03300. The paper details the methodology, dataset construction, and evaluation criteria.

What categories does MMLU-STEM cover?

MMLU-STEM is categorized under math, physics, reasoning, and chemistry. The benchmark evaluates text models.

What is the best open-source model on MMLU-STEM?

Qwen2.5 32B Instruct by Alibaba Cloud / Qwen Team is the top-ranked open-source model on MMLU-STEM, with a score of 0.809 (rank #1).

How recent are the MMLU-STEM leaderboard results?

The MMLU-STEM leaderboard was last updated in June 2026 and currently includes 2 evaluated models.

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