Claude's text watermark: what it means for Article 50
Anthropic will weave an invisible watermark into Claude's text output to meet the EU AI Act's Article 50 marking obligation, applying it globally across the API, apps and cloud platforms including Microsoft Foundry. What the mark can and cannot prove, which deployer duties remain yours, and when a DIY provenance layer still earns its keep on Azure.
Article 50 compliance for Azure OpenAI apps: a guide
The European Commission adopted its final Article 50 transparency guidelines on 20 July 2026 and confirmed the Code of Practice on marking AI-generated content as adequate, less than two weeks before the obligations start to apply. Here is what Swedish and EU teams running chatbots, copilots and content generators on Azure OpenAI must implement: chatbot disclosure, machine-readable marking and deepfake labels, with concrete code patterns for each.