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Pretraining data dictates LLM scaling laws, study finds

Researchers have identified that the pretraining data is the primary determinant of loss-to-loss scaling laws in large language models. Their experiments indicate that factors such as model size, optimization hyperparameters, and even architectural differences between Transformers and state-space models have a limited influence on these scaling trends. The findings suggest that curating appropriate pretraining datasets is crucial for optimizing downstream performance, while other model configurations can be adjusted for training efficiency. AI

Summary written by gemini-2.5-flash-lite from 1 source. How we write summaries →

IMPACT Highlights the critical role of pretraining data in LLM performance, guiding future research and development efforts.

RANK_REASON Academic paper detailing research findings on LLM scaling laws. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv cs.AI →

COVERAGE [1]

  1. arXiv cs.AI TIER_1 · Prasanna Mayilvahanan, Thadd\"aus Wiedemer, Sayak Mallick, Matthias Bethge, Wieland Brendel ·

    LLMs on the Line: Data Determines Loss-to-Loss Scaling Laws

    arXiv:2502.12120v3 Announce Type: replace-cross Abstract: Scaling laws guide the development of large language models (LLMs) by offering estimates for the optimal balance of model size, tokens, and compute. More recently, loss-to-loss scaling laws that relate losses across pretra…