# From Model Scaling to System Scaling: The Harness Is the New Leverage

> Shangding Gu argues that harness engineering - tools, memory, context management, orchestration - now delivers superior performance gains to raw model scaling for agentic tasks, confirmed by SWE-bench, AgentBench, WebArena, and TerminalBench results.

Canonical URL: https://kravhal.kcsatish.com/insights/week-27
Edition: Week 14
Tags: Agents, Optimization, LLMs
Reading time: 8 min read

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