We propose shared gradient discovery and superposition as a mechanism underlying generalization in LLMs, where shared gradients lead to inherently generalizing shared solutions. To validate our hypothesis, we study circuit emergence as one form of learning such generalizing solutions. We find that our hypothesis can indeed explain and shed new light on circuit emergence and generalization.
@inproceedings{
mircea2026shared,
title={Shared Gradient Discovery and Superposition: Learning Dynamics of Generalization in {LLM}s},
author={Andrei Mircea and Ildus Sadrtdinov and Irina Rish and Ekaterina Lobacheva},
booktitle={Workshop on Scientific Methods for Understanding Deep Learning},
year={2026},
url={https://openreview.net/forum?id=c1pEF21dsY}
}