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An experiment running the same research prompt about LENR and superconductivity through six AI systems in five languages reveals significant linguistic bias, with non-English queries surfacing information about real industrial commitments that English-only searches miss.
This paper demonstrates that LLMs are heavily biased toward English, and shows that continual pre-training does not offer cost advantages over training from scratch for adapting models to other languages, especially for cultural understanding.
Researchers identify systematic English and query-language bias in multilingual RAG rerankers and introduce LAURA, a utility-driven alignment method that boosts performance by retrieving answer-critical documents across languages.