Researchers release 44B synthetic tokens for higher-quality pretraining data
vanstriendaniel · x · 2026-07-21
Researchers release 44B synthetic tokens from CoT-guided rewriting
The post announces a release of 44B synthetic tokens generated through CoT-guided rewriting.
Main claim
- The authors say the resulting data offers higher-quality pretraining material than the average human-written web text.
- The release includes both the dataset and the paper.
- The paper has been accepted at COLM 2025.
Why it matters
- It is aimed at improving pretraining data quality, not just scale.
- The work suggests synthetic text can be filtered and rewritten in a way that may outperform raw web data for model training.
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