This article shows how the recovery of inflation in 2009-10 occurred precisely at the only time (since 1985) the models would predict disinflation, i.e., inflation went up when the models said it should go down

The years following the Great Recession were challenging for forecasters. Unlike other deep downturns, this recession was not followed by a swift recovery, but generated a sizable and persistent output gap that was not accompanied by deflation as a traditional Phillips curve relationship would...

Forecasts by the Board staff for economic activity during the Great Recession proved to be overly optimistic on some dimensions, such as GDP, and yet were appropriately pessimistic on other dimensions, such as the GDP gap (the deviation of GDP from potential output)