In 2024, the EU adopted a sweeping AI law known as the "AI Act", but its rules have been introduced in stages. From Sunday, AI-generated content like deepfakes must be labelled, while firms must ensure their AI systems like chatbots make it clear to users they are AI. - Enforcement powers -On Sunday, European regulators in the AI Office will have the power to enforce the bloc's rules on the most advanced AI models. The AI Office will be able to test the most advanced general-purpose AI models like chatbots to ensure they comply with the law. The rules will apply for stand-alone high-risk AI systems from December 2027 and in August 2028 for AI tools embedded in other products.