Machine Heart

Jun 30, 2026 · Artificial Intelligence

Is There Really a Unique Mechanism in LLMs? Rethinking Functional Anisotropy

A recent ICML 2026 paper disproves the long‑held assumption that each task in a large language model is supported by a single, unique circuit, showing through overlap‑aware sheaf repulsion that many structurally dissimilar, sparse sheafs can achieve identical performance across multiple benchmarks, and proposing a distributive dense circuit hypothesis to explain this non‑uniqueness.