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Gemini SynthID

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Hand-drawn editorial cutaway of a document passing through token, signed provenance and pixel watermark layers while a brush removes only surface marks.
AI Technology15 min read

Claude vs ChatGPT vs Gemini: 4 AI Watermark Layers and the Free Tools That Work in 2026

Claude, ChatGPT and Gemini do not use one shared watermark. This evidence-led guide separates visible badges, C2PA metadata, embedded media signals and statistical text marks, then tests the free tools that claim to remove them.

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