AI Act enforcement mode: what U.S. GPAI providers must do now
Since August 2, 2026, the European AI Office can demand documentation, evaluate models, impose corrective measures and fine up to €15 million or 3% of worldwide turnover for GPAI breaches. Article 50 transparency also applies, with a limited transition to December 2 for machine-readable marking of earlier systems. September explainers detail authorized representatives, training summaries and intermediate logging.