# Hierarchical Reasoning Model

Authors: Guan Wang, Jin Li, Yuhao Sun, Xing Chen, Changling Liu, Yue Wu, Meng Lu, Sen Song, Yasin Abbasi Yadkori.

Uses coupled recurrent modules operating at different timescales to perform iterative internal computation on difficult reasoning tasks.

First public: 2025-06-26.
ArXiv initial submission: 2025-06-26.

[Original paper](https://arxiv.org/abs/2506.21734) · [Reading-list entry](https://latent-implicit-thinking.github.io/papers/2506.21734/)
[Preprint BibTeX](https://latent-implicit-thinking.github.io/papers/2506.21734/citation.bib) · [Preprint CSL-JSON](https://latent-implicit-thinking.github.io/papers/2506.21734/citation.csl.json) · [JSON record](https://latent-implicit-thinking.github.io/papers/2506.21734/record.json)
[Code](https://github.com/sapientinc/HRM)

## Approaches

- [Recurrent reasoning](https://latent-implicit-thinking.github.io/topics/recurrent-reasoning/): Repeat parts of the model or keep intermediate information in memory while working through a problem. Some methods also learn how many passes to run.

Summary and categories are editorial. Read the original paper to verify claims and limitations. A citation to a paper does not, by itself, establish that a later method builds on it.

Reading-list version 0.9.5; literature checked through 2026-10-18.