AI falls short on context and cultural rhetoric and still cannot replace human interpreters

As generative artificial intelligence (AI) becomes increasingly widely used in translation, questions have been raised over whether it could eventually replace professional interpreters. A joint study conducted by Lingnan University compared AI and professional interpreters in translating major speeches and found that while AI can improve translation efficiency, it is still less capable than professional interpreters of adapting language to context and preserving rhetorical and communicative effects. The researchers conclude that human judgement and oversight remain essential, particularly in politically, diplomatically, and culturally sensitive settings. These findings have been published in Humanities and Social Sciences Communications, a leading journal in the Nature Portfolio.
Prof Wang Binhua, Professor of the Department of Translation and Head of the Centre for English and Additional Languages, member of the SIG on Artificial Intelligence in Translation and Interpreting of the European Language Council, said “Large language models still face the challenge of the ‘black box’, meaning that the mechanisms through which they produce particular translations remain difficult to explain. Unlike professional interpreters, who work within established professional ethical standards and are accountable, AI systems generate translations by identifying patterns in large volumes of language data and do not possess an intrinsic ethical framework. In translation tasks that require careful attention to cultural meaning and contextual understanding, human interpreters remain indispensable in making informed judgements about interpersonal relationships, rhetorical choices, and cultural expression.”
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Prof Wang Binhua, Professor of the Department of Translation and Head of the Centre for English and Additional Languages, says that AI is better positioned to augment rather than replace professional translators and interpreters.

The study analyses 16 Chinese-language speeches delivered at the United Nations General Assembly between 2008 and 2023, comparing AI-generated translations with professional conference interpreting. The researchers find that even when AI is provided with extensive contextual information and prompts, major differences remain in contextual understanding and translation strategies between AI and human interpreters.

