Hierarchical Reasoning — 2 Technical Articles

Dec 2, 2025 · Artificial Intelligence

Why Hierarchical Reasoning Model (HRM) Beats Large Models on ARC with Few Samples

The Hierarchical Reasoning Model (HRM) draws on brain-inspired hierarchical processing to achieve state‑of‑the‑art performance on ARC, Sudoku‑Extreme, and Maze‑Hard tasks using under a thousand training examples, while exposing generalization limits on private test sets.

ARC BenchmarkAdaptive Computation TimeHierarchical Reasoning

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Why Hierarchical Reasoning Model (HRM) Beats Large Models on ARC with Few Samples

Data Party THU

Oct 8, 2025 · Artificial Intelligence

Why Reinforcement Learning Unlocks Hierarchical Reasoning in LLMs: The HICRA Breakthrough

The article explains how reinforcement learning induces a hierarchical learning dynamic in large language models, introduces the HICRA training paradigm that concentrates gradient updates on planning tokens, and shows through extensive text and multimodal benchmarks that this approach consistently yields earlier Aha moments and superior reasoning performance.

HICRAHierarchical ReasoningSemantic Entropy

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Why Reinforcement Learning Unlocks Hierarchical Reasoning in LLMs: The HICRA Breakthrough