Claude incident: Elevated errors on Sonnet 5 and Haiku 4.5

1. resolvedJul 17, 2026, 12:21 UTC

   This incident has been resolved.

What APIStatus.watch saw

Our 5-minute checks didn't record a change in Claude's overall status around this incident. Smaller or regional incidents often leave a provider's overall status green.

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• Twilio: SMS Delivery Delays and Failures from a Subset of Twilio Alphanumeric Sender IDs and Long Codes to MPT MyanmarMinor · Jul 16, 2026, 22:32 UTC
• Twilio: SMS Delivery Failures from Twilio to MTS RussiaMinor · Jul 17, 2026, 04:13 UTC
• Twilio: SMS Delivery Receipt Delays from Twilio to TIM BrazilMinor · Jul 17, 2026, 05:24 UTC
• Cursor: Investigating Anthropic degradationMinor · Jul 17, 2026, 07:17 UTC

How often does Claude have incidents?

Claude reported 85 incidents in the last 90 days, 32 of them major or critical. A typical incident lasted 1h 7m. See Claude's uptime and incident history