MORPHOGEN: A Multilingual Benchmark for Evaluating Gender-Aware Morphological Generation
Provides a diagnostic tool for evaluating morphological gender handling in LLMs, addressing an underexplored aspect of multilingual NLP.
The paper introduces MORPHOGEN, a benchmark for evaluating gender-aware morphological generation in French, Arabic, and Hindi. Testing 15 multilingual LLMs (2B-70B) on a gender rewriting task reveals significant performance gaps.
While multilingual large language models (LLMs) perform well on high-level tasks like translation and question answering, their ability to handle grammatical gender and morphological agreement remains underexplored. In morphologically rich languages, gender influences verb conjugation, pronouns, and even first-person constructions with explicit and implicit mentions of gender. We introduce MORPHOGEN, a morphologically grounded large-scale benchmark dataset for evaluating gender-aware generation in three typologically diverse grammatically gendered languages: French, Arabic, and Hindi. The core task, GENFORM, requires models to rewrite a first-person sentence in the opposite gender while preserving its meaning and structure. We construct a high-quality synthetic dataset spanning these three languages and benchmark 15 popular multilingual LLMs (2B-70B) on their ability to perform this transformation. Our results reveal significant gaps and interesting insights into how current models handle morphological gender. MORPHOGEN provides a focused diagnostic lens for gender-aware language modeling and lays the groundwork for future research on inclusive and morphology-sensitive NLP.