Paper finds LLM skills vary by language; English reasoning recovers performance

LChoshen · x · 2026-08-25

Retweeted a paper titled "Skill Issue: Are Skills Language-Invariant in LLMs?" The research reveals significant gaps in reasoning and strategy when multilingual LLMs operate in different languages, even with fixed game rules. Surprisingly, switching the reasoning language to English often recovers most of the lost performance, suggesting that while skills may exist within the model, the language interface dictates accessibility.

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