Checked fact 484413 Nov 2026Agents and apps

The page says Claude Fable 5.2, Claude Mythos 5.2 and earlier Fable and Mythos models are designated Covered Models that require 30-day data retention and are not available under ZDR unless expressly authorized by Anthropic.

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The exact words it rests on

Claude Fable 5.2, Claude Mythos 5.2, Claude Fable 5.1, Claude Mythos 5.1, Claude Fable 5, and Claude Mythos 5 are designated Covered Models. ... They require 30-day data retention. ZDR is therefore not available for any of them unless expressly authorized by Anthropic.

What the source said when we opened it, on 13 Nov 2026.

The source

API and data retention (Claude Platform docs)
Anthropic

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Checked

Checked by the notis newsroom on 13 Nov 2026, against the source above.

In the story

What zero data retention covers and excludes in Anthropic's and OpenAI's APIs 13 Nov 2026

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In a sentence

“The page says Claude Fable 5.2, Claude Mythos 5.2 and earlier Fable and Mythos models are designated Covered Models that require 30-day data retention and are not available under ZDR unless expressly authorized by Anthropic.” ai notis, checked 13 Nov 2026. Source: API and data retention (Claude Platform docs) (Anthropic). https://ainotis.com/c/4844

As a reference (APA style)

ai notis. (2026, November 13). The page says Claude Fable 5.2, Claude Mythos 5.2 and earlier Fable and Mythos models are designated Covered Models that require 30-day data retention and are not available under ZDR unless expressly authorized by Anthropic [Checked claim 4844]. ai notis. https://ainotis.com/c/4844

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