Lilian Weng: Agent Harnesses Are as Crucial as Models

Lilian Weng emphasizes that an AI agent's harness is just as critical as its underlying model, as different harnesses and protocols can drastically alter the same model's behavior and performance.

2026-08-04 ~ 2026-08-04 · 2 related posts

• The same model can behave very differently because the harness changes the protocol — remilouf · 2026-08-04
• Lilian Weng argues the agent harness may matter as much as the model itself — sudoraohacker · 2026-08-04