Pretraining Latent Information Feedback Transformers with Teacher Supervision
Dor Tirosh, Ido Amos, Mor Geva
arXiv:2609.38149v1Today’s most broadly interesting paper is about a new way to make language models remember and use information across generation. Standard transformers pass information forward only through the next token, which means they can forget useful intermediate state and have to recompute a lot of work. The authors propose LIFT, or Latent Information Feedback Transformer, which adds a compact learned state that gets predicted and fed back through the model at each step. During pretraining, that state is supervised using information from a strong teacher model, so training stays parallel and efficient. At inference time, the model uses its own predicted states, creating a lightweight recurrent-like loop inside a transformer. The result is a model that does better on language modeling, reasoning, and procedural tasks than standard transformers of similar size and compute. Why this matters: it points to a practical path beyond pure next-token prediction, toward language models that can carry richer internal memory and improve their reasoning without sacrificing scalable training.
Also spotted that day
Previous daily papers