Author

Jenna Russell

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#machine learning Preprint Sep 2026

How Much Is an AI Token Worth? Scaling Laws for Wild AI-Generated Web Text

Web text makes up the majority of pretraining data and is increasingly AI-generated. After applying FineWeb quality filtering, we find that 27.5% of tokens from June 2026 web data are labeled as AI-generated by Pangram, rising to 31.1% by August. Unlike synthetic data or model-collapse setups, this *wild* AI text comes...

Jenna Russell, Ben Glickenhaus, Katherine Thai et al. · 0 citations

#artificial intelligence Jun 2026

POLARIS: Guiding Small Models to Write Long Stories

The results suggest that length generalization is a meaningful stress test for creative-writing models and a useful lens for distinguishing otherwise close models.

Rishanth Rajendhran, Jenna Russell, Mohit Iyyer et al. · arXiv.org · 1 citation