Articles | Agentica

LLM Neuroanatomy: How Duplicating 3 Layers in a 24B Model Boosted Logical Deduction .22 to .76 — Without Training AI

2026-03-19T01:09:09.000Z

A researcher topped the HuggingFace Open LLM Leaderboard not by training, merging weights, or fine-tuning — but by duplicating 7 middle layers in a 72B model. The discovery reveals that LLM middle lay

llm mechanistic interpre neural architecture