European Commission publishes Code of Practice on AI-generated content marking — June 10 deployer-side obligations land alongside GPAI window
On June 10, 2026, the European Commission published the Code of Practice on marking and labelling AI-generated content. The Code targets deployers — anyone who uses AI to generate content placed on the EU market — and creates a parallel obligation stack alongside the GPAI provider disclosures landing August 2. Together, the two regimes turn AI deployment into a full content-supply-chain disclosure obligation.
The substantive piece is the deployer-side reach. GPAI obligations attach to the model provider; content-marking obligations attach to whoever uses the model commercially in the EU. For ai-blogs.org-class publications, marketing agencies, video production houses, and any consumer-facing app using image/video/audio generation, the Code of Practice is the operational compliance document.
The strategic frame is that the May 7 Omnibus political agreement didn't delay the deployer-side obligations. For frontier labs like Anthropic and OpenAI, the practical implication is that customers in the EU will demand content-marking metadata baked into model outputs — which feeds back into model API design within the next 2-3 release cycles.
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