MEGA XCOPA

XCOPA (Cross-lingual Choice of Plausible Alternatives) as part of the MEGA benchmark suite. A typologically diverse multilingual dataset for causal commonsense reasoning in 11 languages, including resource-poor languages like Eastern Apurímac Quechua and Haitian Creole. Requires models to select which choice is the effect or cause of a given premise.

Phi-3.5-MoE-instruct from Microsoft currently leads the MEGA XCOPA leaderboard with a score of 0.766 across 2 evaluated AI models.

Paper
About this benchmark

What MEGA XCOPA measures

MEGA XCOPA is a text benchmark that evaluates large language models on language and reasoning tasks. LLM Stats tracks 2 models on this benchmark, with a maximum possible score of 1. Current average across reported models is 0.7, with the leader reaching 0.8.

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

Publication

Paper
XCOPA: A Multilingual Dataset for Causal Commonsense Reasoning
Authors
Edoardo Maria Ponti, Goran Glavaš, Olga Majewska, Qianchu Liu, and 2 others
Published

Abstract

In order to simulate human language capacity, natural language processing systems must be able to reason about the dynamics of everyday situations, including their possible causes and effects. Moreover, they should be able to generalise the acquired world knowledge to new languages, modulo cultural differences. Advances in machine reasoning and cross-lingual transfer depend on the availability of challenging evaluation benchmarks. Motivated by both demands, we introduce Cross-lingual Choice of Plausible Alternatives (XCOPA), a typologically diverse multilingual dataset for causal commonsense reasoning in 11 languages, which includes resource-poor languages like Eastern Apurímac Quechua and Haitian Creole. We evaluate a range of state-of-the-art models on this novel dataset, revealing that the performance of current methods based on multilingual pretraining and zero-shot fine-tuning falls short compared to translation-based transfer. Finally, we propose strategies to adapt multilingual models to out-of-sample resource-lean languages where only a small corpus or a bilingual dictionary is available, and report substantial improvements over the random baseline. The XCOPA dataset is freely available at github.com/cambridgeltl/xcopa.

MicrosoftPhi-3.5-MoE-instruct leads with 76.6%, followed by MicrosoftPhi-3.5-mini-instruct at 63.1%.

Progress Over Time

Interactive timeline showing model performance evolution on MEGA XCOPA

State-of-the-art frontier
Open
Proprietary

MEGA XCOPA Leaderboard

2 models
ContextCostLicense
160B
24B
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FAQ

Common questions about MEGA XCOPA.

What is the MEGA XCOPA benchmark?

XCOPA (Cross-lingual Choice of Plausible Alternatives) as part of the MEGA benchmark suite. A typologically diverse multilingual dataset for causal commonsense reasoning in 11 languages, including resource-poor languages like Eastern Apurímac Quechua and Haitian Creole. Requires models to select which choice is the effect or cause of a given premise.

What is the MEGA XCOPA leaderboard?

The MEGA XCOPA leaderboard ranks 2 AI models based on their performance on this benchmark. Currently, Phi-3.5-MoE-instruct by Microsoft leads with a score of 0.766. The average score across all models is 0.699.

What is the highest MEGA XCOPA score?

The highest MEGA XCOPA score is 0.766, achieved by Phi-3.5-MoE-instruct from Microsoft.

How many models are evaluated on MEGA XCOPA?

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

Where can I find the MEGA XCOPA paper?

The MEGA XCOPA paper is available at https://arxiv.org/abs/2005.00333. The paper details the methodology, dataset construction, and evaluation criteria.

What categories does MEGA XCOPA cover?

MEGA XCOPA is categorized under language and reasoning. The benchmark evaluates text models with multilingual support.

What is the best open-source model on MEGA XCOPA?

Phi-3.5-MoE-instruct by Microsoft is the top-ranked open-source model on MEGA XCOPA, with a score of 0.766 (rank #1).

How recent are the MEGA XCOPA leaderboard results?

The MEGA XCOPA leaderboard was last updated in June 2026 and currently includes 2 evaluated models.

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