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Friday, 21 August 2026

Nvidia just showed that the harness, not the AI model, is now the real hero

TechCrunch 2 weeks ago 46 ● 4 sources

Nvidia published research showing that a custom “harness” with better memory handling and a supervisory component enabled Claude Opus 5 to perform long-horizon interactive reasoning tasks much more reliably. It reports a 100% score on ARC-AGI-3 with the harness, versus 30% without it. The takeaway is that agent performance—and likely cost and safety—depends more on harness design than on the underlying AI model alone.

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AI Evaluation NVIDIA Agent Architecture Agentic Systems

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