Stop Blaming the Model. Your AI Agent’s Real Problem Is the Harness.
A new benchmark reveals a brutal truth: nine different harnesses running the same model produced a 17x cost variance. Your AI agents aren’t slow because of your model choice—they’re slow because of the scaffolding around them. The future of AI ROI isn’t computed in model quality; it’s measured in the middleware that handles each model’s quirks. Stop blaming the brain and start looking at the nervous system.