SuperValid: Capability-Aligned OOD Validation for Generalizable Downstream Scaling

Fuente: arXiv
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Autores principales: Sun, Quanen, Tian, Changxin, Shi, Ke, Chen, Cai, Peng, Cunyin, Liu, Jia, Chen, Kunlong, Zhang, Zhiqiang
Formato: Preprint
Publicado: 2026
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author Sun, Quanen
Tian, Changxin
Shi, Ke
Chen, Cai
Peng, Cunyin
Liu, Jia
Chen, Kunlong
Zhang, Zhiqiang
author_facet Sun, Quanen
Tian, Changxin
Shi, Ke
Chen, Cai
Peng, Cunyin
Liu, Jia
Chen, Kunlong
Zhang, Zhiqiang
contents Scaling laws guide large language model training by relating compute to cross-entropy loss, and recent work further extends them to predict downstream benchmark performance. However, prior approaches face generalization limitations from two aspects: focusing on benchmark-level performance introduces scenario-specific artifacts, while relying on IID validation loss fails to track capability improvements when training distributions vary. In this work, we argue that downstream scaling should be studied at the capability level, which captures shared skill factors across related tasks while abstracting away benchmark-specific noise. We propose SuperValid, a framework that synthesizes OOD (out-of-distribution), capability-aligned validation data by distilling core concepts from benchmarks within a capability domain and expanding them into diverse, knowledge-rich texts. Extensive experiments spanning 17 benchmarks grouped into 6 capability domains show that SuperValid loss exhibits strong and stable correlation with downstream performance across models of different architectures, scales, and training data distributions. As a training-free metric computable during training without benchmark evaluation, SuperValid enables effective model selection, early stopping, and scaling decisions.
format Preprint
id arxiv_https___arxiv_org_abs_2605_28179
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle SuperValid: Capability-Aligned OOD Validation for Generalizable Downstream Scaling
Sun, Quanen
Tian, Changxin
Shi, Ke
Chen, Cai
Peng, Cunyin
Liu, Jia
Chen, Kunlong
Zhang, Zhiqiang
Computation and Language
Scaling laws guide large language model training by relating compute to cross-entropy loss, and recent work further extends them to predict downstream benchmark performance. However, prior approaches face generalization limitations from two aspects: focusing on benchmark-level performance introduces scenario-specific artifacts, while relying on IID validation loss fails to track capability improvements when training distributions vary. In this work, we argue that downstream scaling should be studied at the capability level, which captures shared skill factors across related tasks while abstracting away benchmark-specific noise. We propose SuperValid, a framework that synthesizes OOD (out-of-distribution), capability-aligned validation data by distilling core concepts from benchmarks within a capability domain and expanding them into diverse, knowledge-rich texts. Extensive experiments spanning 17 benchmarks grouped into 6 capability domains show that SuperValid loss exhibits strong and stable correlation with downstream performance across models of different architectures, scales, and training data distributions. As a training-free metric computable during training without benchmark evaluation, SuperValid enables effective model selection, early stopping, and scaling decisions.
title SuperValid: Capability-Aligned OOD Validation for Generalizable Downstream Scaling
topic Computation and Language
url https://arxiv.org/abs/2605.28179