xAI plans to, starting November 7 by default add invisible watermarks to the text outputs of Grok 4.7、4.6 and other models,API with team administrators able to disable them by model.
Reports say that xAI will, starting November 7, add invisible text watermarks by default to the outputs of multiple Grok models across global and regional API, covering structured outputs and tool-call parameters. Developers may disable them on a per-model basis, but must independently confirm legal exemptions and assume responsibility for disclosure.