Benchgen

MGSM — Results

RankModelScore
1deepseek-v4-1-flash80.2
2llama-4-maverick0.923
3o3-mini0.92
4claude-3-5-sonnet0.916
5llama-3-3-70b-instruct0.911
6llama-4-scout0.906
7gpt-4o0.905
8o10.893
9gpt-4-turbo0.885
10gemini-1-5-pro0.875
11gpt-4o-mini0.87
12llama-3-2-90b-instruct0.869
13claude-3-5-haiku0.856
14qwen3-235b-a22b0.835
15gemini-1-5-flash0.826
16phi-40.806
17phi-4-mini0.639
18phi-3-5-moe-instruct0.587
19llama-3-2-3b-instruct0.582
20phi-3-5-mini-instruct0.479

MGSM

1 phaseActive

Multilingual Grade School Math — 250 problems per language across 10 languages translated from GSM8K. Tests mathematical reasoning across language boundaries. Metric: accuracy.

Overview

MGSM

Category Metric Tasks Saturation Languages

Paper GitHub Dataset

Quick answer: MGSM (Multilingual Grade School Math) is a multilingual extension of GSM8K created by Shi et al. (2022). It contains 250 problems per language across 10 languages — Bengali, Chinese, French, German, Japanese, Russian, Spanish, Swahili, Telugu, and Thai — for a total of 2,500 problems. It tests whether language models can solve grade-school math word problems when presented in languages other than English, revealing cross-lingual reasoning transfer.

At a Glance

What it tests: Mathematical reasoning in 10 diverse languages. Problems are direct translations of GSM8K problems, controlling for content difficulty while varying only the language. This isolates the model's ability to understand and reason in non-English languages.

Why it matters: MGSM is a critical benchmark for multilingual model evaluation — particularly for understanding whether math reasoning degrades in low-resource languages like Swahili and Telugu. It reveals large gaps between English performance and performance in other languages, especially for smaller models.

Known limitations: Saturated for frontier multilingual models (85–95% on major languages). Translations maintain GSM8K's difficulty, which is relatively easy for modern models. Performance variance is highest for low-resource languages.

What MGSM Measures

MGSM uses 250 problems from the GSM8K test set, professionally translated into 10 languages:

LanguageScriptResource Level
BengaliবাংলাMedium
Chinese (Simplified)中文High
FrenchFrançaisHigh
GermanDeutschHigh
Japanese日本語High
RussianРусскийHigh
SpanishEspañolHigh
SwahiliKiswahiliLow
TeluguతెలుగుLow
ThaiภาษาไทยMedium

The primary metric is accuracy averaged across all 10 languages. Results are also commonly broken down per language.

Benchmark Specifications

FieldValue
Problems2,500 (250 per language)
Languages10
SourceGSM8K (250-problem subset)
Primary metricAccuracy (avg across languages)
Created byShi et al.
PaperarXiv:2210.01362 (Oct 2022)
SaturationHigh for major languages, medium for low-resource

Frequently Asked Questions

How does MGSM compare to GSM8K? MGSM uses the same 250 problems from GSM8K translated into 10 languages. GSM8K uses English only with 1,319 test problems. MGSM specifically tests multilingual generalization, while GSM8K is the standard English math benchmark.

What score do frontier models get on MGSM? Frontier models (GPT-4o, Claude 3.5+, Gemini 1.5+) score 85–95% averaged across all 10 languages. Performance in Swahili and Telugu is typically 5–15 points lower than in French, German, or Chinese.

Is MGSM still useful for evaluation? MGSM remains useful for tracking multilingual capability gaps between languages. While saturated on major languages, it still discriminates models on low-resource languages. New models are often still evaluated on MGSM for comparability with historical results.