Decision Walk: Verify a Benchmark Jump After a Model Swap

Good news pressure A model swap posts a 12-point gain and everyone wants to believe it quickly. Improvement can trigger just as much confirmation bias as failure when the result is strategically attractive. The principle Check comparability, error shape, and business relevance A benchmark jump is only decision-useful if you know the test was comparable, the changed errors are meaningful, and the win matters in the intended workflow. Shortcut Announce the score before checking what changed underneath it. You report a validated gain rather than a flattering number. Validation is strongest when it tests the result against plausible non-improvement explanations…

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