Claude app incident expands to include Sonnet 5

An ongoing incident affecting Claude Mythos 5, Fable 5, and Opus 5 now also impacts Claude Sonnet 5. Anthropic has identified the cause and is working on a fix, with elevated errors continuing.

Aug 5, 2026Views:0

Impact Assessment

Cost0

Reliability4

Migration0

Quality1

Compliance0

Sources

status

Anthropic Status History

Degraded performance of multiple models | https://status.claude.com/incidents/f6gkkq6txl7z | <p> <small>Aug <var data-var='date'> 5</var>, <var data-var='t...

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