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Toward LLMs Beyond English-Centric Development

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Computer Science > Computation and Language

arXiv:2605.15613 (cs)
[Submitted on 15 May 2026]

Title:Toward LLMs Beyond English-Centric Development

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Abstract:Through an analysis of sequences generated by open-weight large language models (LLMs), we demonstrate that LLMs are heavily biased toward English. While continual pre-training is commonly used to adapt LLMs to a target language, we show that it does not offer a cost advantage over training from scratch, even for improving cultural understanding in the target language. These findings suggest that dedicated per-language investment may become increasingly important for future LLM development, rather than relying primarily on the expansion of English-centric resources.
Subjects: Computation and Language (cs.CL)
Cite as: arXiv:2605.15613 [cs.CL]
  (or arXiv:2605.15613v1 [cs.CL] for this version)
  https://doi.org/10.48550/arXiv.2605.15613
arXiv-issued DOI via DataCite (pending registration)

Submission history

From: Sho Takase [view email]
[v1] Fri, 15 May 2026 04:51:07 UTC (234 KB)
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