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2026arXiv

Test-Time Training with Next-Token Prediction

Xuan Ouyang, Zefan Cai, Junjie Hu

What this work does

Shapes selected MLP projections for next-context-state supervision and fits a prompt-specific fast-weight perturbation by ridge regression before generation.

Connection to discovery

An architectural memory/adaptation comparison for keeping long research evidence usable, separate from reward-driven agent learning.

Evidence

Inspected the inference patch/restore equations and the explicit statement that the regression relies on TTT-NTP pretraining of the projection.

Scope and limitations

The body describes adaptation-oriented pretraining; it should not be interpreted as an arbitrary unmodified-checkpoint update. Long-context gains do not establish better experimental discovery.

THE RESEARCH CONVERSATION

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