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Wednesday, 4 November 2026
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Claude Mythos 5, Claude Opus 4.7, Claude Sonnet 4.6

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Anthropic Introduces Watermarking for Latest Claude Models

Anthropic has updated its platform to include a text watermark for content generated by Claude Mythos 5, Opus 4.7, and Sonnet 4.6. This measure serves to identify AI-generated text, though it may be bypassed under specific technical configurations.

Claude Platform Release Notes
Claude Mythos 5, Claude Opus 4.7, Claude Sonnet 4.6 · TENESYS AI NEWS