Unverified50% confidenceFactExact time
English typically accounts for 40%–70% of mainstream LLM training data, while Czech and Slovak may each account for less than 1%.
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50%
Confidence
Long-term
Relevance
9/11/2026
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UnverifiedEnglish data accounts for an overwhelming proportion of mainstream large language model training corpora; taking public datasets such as Common Crawl as an example, English content typically constitutes 40%–60% of the total, while languages such as Vietnamese and Chinese often account for less than 5%.72% similarUnverifiedMeta Llama 2的2万亿token训练数据中英语占比约89.7%，欧洲语言合计约8%，其余所有语言共享约2%71% similarUnverifiedEnglish content typically accounts for 60%–80% of the training data in mainstream large language models.70% similarUnverifiedEnglish content in mainstream large language model training corpora typically exceeds 50%, leading to significant performance gaps for non-English languages.64% similarUnverifiedIn general-purpose corpora such as Common Crawl, English typically accounts for more than 45%, while Portuguese accounts for less than 2%.63% similar
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