The EU AI Act applies to AI agents through its risk-based obligations, which depend on how the agent is used rather than on the agent label. Obligations for general-purpose AI models applied from August 2, 2025, and penalties reach up to 35 million euros or 7% of global turnover for prohibited practices. The Digital Omnibus on AI, formally adopted by the European Parliament on June 16 and the Council on June 29, 2026, fixed the revised high-risk dates: December 2, 2027 for standalone Annex III systems and August 2, 2028 for Annex I embedded systems. Map your agent use cases to the Act’s risk tiers to see which obligations and dates apply.