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The EU AI Act (Regulation (EU) 2024/1689) enters its critical enforcement phase on August 2, 2026, when Chapter 9 enforcement rules become fully applicable. Providers of General Purpose AI (GPAI) models face significant compliance obligations including transparency requirements, technical documentation, and potential penalties for violations. The European Commission published guidelines on GPAI provider obligations on August 2, 2025, available in all 24 EU official languages, to help AI [removed] actors understand whether the obligations apply to them and what is expected. From August 2, 2025, various provisions became applicable including rules for GPAI models and penalties for AI Act violations, with the full enforcement regime taking effect on August 2, 2026. EU Artificial Intelligence Act reported the core details. Legiscope noted additional context. European Commission Digital Strategy added corroborating details.