Claude Watermarks

Claude can be available in Microsoft 365 Copilot when the tenant permits Anthropic as a Microsoft subprocessor, and Auto mode may route prompts between eligible models. However, Microsoft’s documented watermark feature does not describe invisible watermarks in generated text. Microsoft documents visual or audio watermarks for generated video and audio, optional visual watermarks for images, and provenance metadata for images. It provides no admin or user method to inspect plain text and determine that Claude produced it. If model identity matters, select Claude explicitly instead of Auto and preserve the conversation record, but do not treat copied text as carrying a detectable signature. An administrator can review whether Anthropic access is enabled in the Microsoft 365 admin center. For compliance, classify and review output based on its content and business use, not an assumed watermark. Ask Microsoft Support for written confirmation if a regulatory process requires model-level attribution.