SpaceXSI will watermark Grok API text by default on November 7th
Seven Grok models get an invisible token-level mark on every endpoint, ahead of the EU December 2nd deadline, with a per-model opt-out for team admins.
By Ryan Merket · Published
Primary source: SpaceXSI Docs
Why it matters
Startups building on Grok inherit a provider watermark by default on November 7th, 2026, and opting out shifts marking and disclosure responsibility onto the team under the EU AI Act deadline of December 2nd, 2026.
SpaceXSI will turn on invisible text watermarking by default for Grok API outputs on November 7th, 2026, covering seven models and every API endpoint the company runs. The company says the change is to comply with the EU AI Act in its output watermarking documentation.…
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