EU AI Act Article 50(2) requires machine-readable AI content marking by 2 December

From 2 December 2026, providers of AI systems in the EU must mark synthetic images, audio, video and text in a machine-readable format under Article 50(2) of the AI Act. A four-month transition applies only to systems placed on the market before 2 August 2026; newer products must comply immediately.

• Article 50(2) of the AI Act obliges AI providers to mark synthetic content in machine-readable form
• The 2 December 2026 transition gives four months only to systems launched before 2 August 2026
• C2PA Content Credentials with the trainedAlgorithmicMedia source type can serve as one marking layer
• Visible deepfake disclosure under Article 50(4) remains a separate deployer duty, not the provider's