Teaching Pretrained Language Models to Think Deeper with Retrofitted Recurrence
On the map: LLM reasoning → Test-time compute and efficient thinking
Abstract (arXiv)
Recent advances in depth-recurrent language models show that recurrence can decouple train-time compute and parameter count from test-time compute. In this work, we study how to convert existing pretrained non-recurrent language models into depth-recurrent models. We find that using a curriculum of recurrences to increase the effective depth of the model over the course of training preserves performance while reducing total computational cost. In our experiments, on mathematics, we observe that converting pretrained models to recurrent ones results in better performance at a given compute budget than simply post-training the original non-recurrent language model.
Key facts. Cited by 41 papers in the map (data through 7 Oct 2026). Placed in Test-time compute and efficient thinking, one of 17 directions in LLM reasoning. Builds on 54 of its 96 references that are in the map. First posted on arXiv 10 Nov 2025.
Builds on
54 of 96 references.
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Citing papers per year: 2026: 41.
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