OpenAI incident: Elevated errors from GPT-5.6 and GPT-5.6 Instant on paid plans

1. resolvedSep 15, 2026, 07:53 UTC

   All impacted services have now fully recovered.

2. monitoringSep 15, 2026, 07:24 UTC

   We have applied the mitigation and are monitoring the recovery.

3. investigatingSep 15, 2026, 07:12 UTC

   We are investigating the issue for the listed services.

What APIStatus.watch saw

• Sep 15, 2026, 07:15 UTCoperational → degraded
• Sep 15, 2026, 07:55 UTCdegraded → operational

Other services with incidents at the same time

Overlapping incidents aren't necessarily related.

• Elasticsearch: Replication bug causing slow recoveriesMajor · Sep 1, 2026, 08:16 UTC
• MongoDB Atlas: Impaired Cluster operations in AWS me-central-1 and AWS me-south-1Major · Sep 3, 2026, 16:44 UTC
• Elasticsearch: Elastic Agent enrollment/check-in failures on 9.5.3 (and 9.4.6) with Fleet remote Elasticsearch outputMajor · Sep 9, 2026, 20:44 UTC
• Twilio: Voice Call Failures from a Subset of Twilio Phone Numbers to Hong KongMinor · Sep 12, 2026, 00:16 UTC
• Twilio: SMS Delivery Failures from a Subset of Twilio Long Codes to Bouygues Telecom FranceMinor · Sep 12, 2026, 22:08 UTC
• Twilio: SMS Delivery Receipt Delays from a Subset of Twilio Short Codes to T-Mobile United StatesMinor · Sep 14, 2026, 21:25 UTC
• Twilio: Missing Data in Voice Insights / Console Subaccount RollupMinor · Sep 15, 2026, 03:51 UTC
• Twilio: Voice Call Failures Between Twilio Germany Phone Numbers and Multiple Networks in GermanyMinor · Sep 15, 2026, 07:40 UTC

How often does OpenAI have incidents?

OpenAI reported 18 incidents in the last 90 days, 4 of them major or critical. A typical incident lasted 52 min. See OpenAI's uptime and incident history