status.claude.com) posted Resolved at 16:23 UTC on 3 September: the issue affecting claude-mythos-5-1, claude-fable-5-1, and claude-opus-5 has been resolved, with impact ending at 16:16 UTC, i.e. 00:16 on 4 September (UTC+8). This was a provider-side incident; the APIYI gateway was not changed, and all claude-* models are serving normally again with no code or parameter changes needed.
Grok model status is being tracked separately and will be updated once confirmed. Thank you for your patience; we are monitoring continuously.
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