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Why AI Agent Reliability Depends More on the Harness Than the Model - Stanley - Feb 25, 2026
Why AI Agent Reliability Depends More on the Harness Than the Model
The APEX-Agents benchmark tested frontier models on real professional tasks (banking, consulting, law) Models score above 90% on coding puzzles and multiple-choice tests, then fail at the kind of work an analyst does on a Tuesday morning.
https://hackernoon.com/why-ai-agent-reliability-depends-more-on-the-harness-than-the-model?source=rss