api-and-data-retention changedmanage-claude/api-and-data-retention
Recorded here
Lines+1added
Lines−1removed
From line
126
where the diff opens
First seen
14 Aug 2026
this site's first read of the page
Recorded edits40to this page, all time
The whole hunk
from line 126, old and new numbered
/
from line 126
126126
127127## Model-specific data retention requirements
128128
129Claude 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 (see the [Covered Models support article](https://support.claude.com/en/articles/15425695)) and require 30-day data retention; ZDR is therefore not available for any of them unless expressly authorized by Anthropic. On the Claude API, requests to Claude Fable 5 from an organization whose data retention configuration does not meet this requirement return a `400 invalid_request_error`:
129Claude 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. See the [Covered Models support article](https://support.claude.com/en/articles/15425695). They require 30-day data retention. ZDR is therefore not available for any of them unless expressly authorized by Anthropic. On the Claude API, requests to Claude Fable 5 from an organization whose data retention configuration does not meet this requirement return a `400 invalid_request_error`:
130130
131131```json
132132{
No line in this hunk matches that.