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    "headline": "Anthropic launches AI watermark verification API for regulators and media",
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    "prose": "Anthropic launched a watermark verification API on an unspecified date in 2025 to allow approved organizations to verify if text contains a digital watermark from Claude. [^1]\n\nThe EU AI Act requires new Claude models to embed invisible watermarks in their text output as of August 2, 2025. [^2]\n\nAnthropic announced that its Claude models will soon begin marking text output with invisible watermarks. [^3]\n\nGoogle revealed that its visible Gemini watermark on generated images will now be optional. [^4]\n\nAnthropic claims the watermark may persist through some editing, which they assert should make it far more reliable than traditional detectors like Pangram. [^5]\n\nAnthropic stated that regulators, law enforcement, media, fact-checkers, independent researchers, educational organizations, and EU civil society groups can request access to the verification system. [^6]\n\nGoogle's SynthID distributes an invisible signature across generated images, allowing detection even in cropped versions. [^7]\n\nOpenAI has a standalone tool to check for SynthID or C2PA in a file, though it reportedly only detects media generated by OpenAI itself. [^8]",
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      "statement": "Anthropic launched a watermark verification API on an unspecified date in 2025 to allow approved organizations to verify if text contains a digital watermark from Claude.",
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