Checked fact 34212 Nov 2026Laws and rulings

Anthropic's post of 14 August 2026, updated 1 September 2026, says Anthropic is implementing watermarking to comply with the EU AI Act and that the EU law includes a transition period for Anthropic models launched before August 2, 2026; it does not mention 3 November.

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The exact words it rests on

The EU law includes a transition period for Anthropic models launched before August 2, 2026

What the source said when we opened it, on 2 Nov 2026.

The source

How Claude's text watermarking works
Anthropic · 2026-08-14

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Checked

Checked by the notis newsroom on 2 Nov 2026, against the source above.

In the story

Anthropic's help page lists 16 Claude models back to Opus 4.5 as carrying its text watermark 2 Nov 2026

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“Anthropic's post of 14 August 2026, updated 1 September 2026, says Anthropic is implementing watermarking to comply with the EU AI Act and that the EU law includes a transition period for Anthropic models launched before August 2, 2026; it does not mention 3 November.” ai notis, checked 2 Nov 2026. Source: How Claude's text watermarking works (Anthropic). https://ainotis.com/c/3421

As a reference (APA style)

ai notis. (2026, November 2). Anthropic's post of 14 August 2026, updated 1 September 2026, says Anthropic is implementing watermarking to comply with the EU AI Act and that the EU law includes a transition period for Anthropic models launched before August 2, 2026; it does not mention 3 November [Checked claim 3421]. ai notis. https://ainotis.com/c/3421

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