Beyond the Training Horizon: Mechanisms and Limits of Length Generalization in Looped Transformers
Compares how two looped-transformer training schemes solve multi-step tasks beyond their training length. Uses hidden-state interventions to identify how intermediate information moves through each model and where that process breaks down.
First public: · Added to this list: October 18, 2026
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ArXiv preprint
arXiv:2609.33144 · Initial submission: 2026-09-27
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