Anthropic incident: Elevated errors on Claude Haiku 4.5

1. resolvedMay 19, 2026, 08:30 UTC

   This incident has been resolved.

What APIStatus.watch saw

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

Other services with incidents at the same time

Overlapping incidents aren't necessarily related.

• Confluent Cloud: Elevated error rates and latency on produce and consume operations on AWS us-east-1 AZ4Major · May 8, 2026, 01:14 UTC
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• Linode: [Fragnesia] Linux Privilege Escalation VulnerabilityMinor · May 13, 2026, 21:02 UTC
• Twilio: SMS Delivery Failures between Twilio Phone Numbers and AT&T in MexicoMinor · May 14, 2026, 20:50 UTC
• Twilio: Subset of AU Sender ID Registration Submissions Directly Transitioning to REJECTEDMinor · May 15, 2026, 20:51 UTC
• Snyk: Service Degradation on US-01 (app.snyk.io)Minor · May 18, 2026, 12:12 UTC
• ClickHouse Cloud: GCP us-east1 capacity constraints impacting cluster operationsMinor · May 18, 2026, 12:31 UTC
• Twilio: Delay in Getting Twilio/flows Templates Approved on WhatsappMinor · May 18, 2026, 18:42 UTC
• Twilio: SMS Delivery Delays from Twilio Phone Numbers to GTA Wireless United StatesMinor · May 18, 2026, 22:45 UTC
• Snyk: Supply Chain Compromise on  @antv being investigated for more than 300 packages in npm ecosystemMinor · May 19, 2026, 05:29 UTC

How often does Anthropic have incidents?

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