Gary Marcus: Real Capability Lies in the Harness

Gary Marcus argues that impressive AI capabilities often come from hand-built harnesses rather than the model itself, warning enterprises about opaque vendor-controlled scaffolding, noting even millennium-problem systems rely on manual harnesses plus Lean.

2026-09-09 ~ 2026-09-09 · 2 related posts

• Gary Marcus: it was the harness, not the model — hidden risk of opaque scaffolding — GaryMarcus · 2026-09-09
• Gary Marcus: OpenAI's Math Feat Rests on Hand-Crafted Harness and Lean, Not Pure LLMs — NinaDSchick · 2026-09-09