Abra: Scaling Diffusion Image Training
Summary
This paper presents a systematic scaling law study for text-to-image diffusion models, showing they scale predictably but require significantly more data per parameter than language models for optimal training.
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Paper page - Abra: Scaling Diffusion Image Training
Source: https://huggingface.co/papers/2608.17286
Abstract
Scaling laws for text-to-image diffusion models reveal predictable compute-optimal training requiring far more data per parameter than language models, with robust overtraining behavior and universal curve shapes.
Compute-optimalscaling lawsguide the training of frontier language models yet remain largely unexplored for visual generation. We present a systematic scaling law study fortext-to-image diffusion modelsusing Abra, a controlled family offlow-matching transformerstrained across three orders of magnitude worth of compute (10^{19} to 10^{22} FLOPs), reaching significantly larger compute budgets than previous works. We demonstrate that diffusion models scale just as predictably as language models but require far more data to train optimally: compute optimality occurs at approximately 200 image tokens per parameter, ten times theChinchillacompute-optimalprescription for LLMs. We show that unlike language models, diffusion models are robust to overtraining and that practitioners should err on the side of more data rather than a larger model. Finally, we show that this predictability extends beyond training loss togenerative quality metrics, optimalCFGsettings,representation quality, and even the shape of the training curves, which collapse onto a universal form.
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