Claude (Anthropic) · 74d ago

We’ve suspended access to Claude Mythos 5 and Claude Fable 5

Name: We’ve suspended access to Claude Mythos 5 and Claude Fable 5
Start: 2026-06-13T00:50:43.823Z
End: 2026-07-01T19:26:26.285Z

Resolved

Timeline

Started: Jun 13, 2026, 12:50 AM UTC

Last update: Jul 1, 2026, 7:26 PM UTC

Resolved: Jul 1, 2026, 7:26 PM UTC

Affected: rwppv331jlwc, k8w3r06qmzrp, yyzkbfz2thpt, bpp5gb3hpjcl

resolved
Learn more here: https://anthropic.com/news/redeploying-fable-5
Jul 1, 2026, 7:26 PM UTC
monitoring
Learn more here: https://anthropic.com/news/fable-mythos-access
Jun 13, 2026, 12:50 AM UTC