Cursor incident: Investigating service degradation

Affected components

• Automations
• CLI
• Cloud Agents
• IDE

1. resolvedSep 21, 2026, 07:00 UTC

   This incident has been resolved.

2. investigatingSep 21, 2026, 06:39 UTC

   We are investigating degraded performance for requests that use Grok 4.6. Users may see failed or retried requests in Automations, Cloud Agents, the CLI, and the IDE when Grok 4.6 is used. Other models are unaffected.

What APIStatus.watch saw

Our 5-minute checks didn't record a change in Cursor'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.

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• Twilio: SMS Delivery Delays from Twilio to Telemat Cel BrazilMinor · Sep 20, 2026, 22:28 UTC
• Twilio: Voice Call Post Dial Delay from Twilio Phone Numbers to Jazz PakistanMinor · Sep 21, 2026, 06:10 UTC

How often does Cursor have incidents?

Cursor reported 88 incidents in the last 90 days, 23 of them major or critical. A typical incident lasted 1h 12m. See Cursor's uptime and incident history