Study: Prompt design boosts GPT-5.2 translation quality for journalists

A new study published on arXiv explores how prompt design affects the quality of Spanish-to-Chinese journalistic translations generated by GPT-5.2. Researchers tested 48 conditions, varying prompt types and languages, and evaluated translations using automated metrics like BLEU and BERTScore-F1, as well as human assessment via the Multidimensional Quality Metrics (MQM) framework. While automated metrics favored a baseline prompt, human evaluators found a brief-oriented prompt to be superior, suggesting that translation theory-driven prompts can improve quality for expert review, particularly in reducing awkwardness, though their impact on language learners requires further study. AI

IMPACT Suggests prompt engineering can significantly improve LLM translation quality for specific domains like journalism.

RANK_REASON Research paper detailing methodology and findings on LLM translation quality. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv cs.AI →

• BERTScore-F1
• BLEU
• Brief
• El País
• GPT-5.2
• Multidimensional Quality Metrics
• Spanish
• Standard Chinese

• paper
• model release

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