Elevated errors for ChatGPT Go (5.3 Thinking)

Availability metrics are reported at an aggregate level across all tiers, models and error types. Individual customer availability may vary depending on their subscription tier as well as the specific model and API features in use.

Resolved·Degraded performance

All impacted services have now fully recovered.

Wed, Apr 29, 2026, 10:24 PM

(38 minutes ago)

Affected components

09:01 PM

10:24 PM

Updates

Resolved

All impacted services have now fully recovered.

Wed, Apr 29, 2026, 10:24 PM

Monitoring

We have applied the mitigation and are monitoring the recovery.

Wed, Apr 29, 2026, 09:59 PM(24 minutes earlier)

Identified

We have identified elevated error rates impacting ChatGPT Go (5.3 Thinking). Other ChatGPT Go models are not affected at this time.

The team is actively working on a mitigation.

Wed, Apr 29, 2026, 09:25 PM(34 minutes earlier)

Identified

We have identified that ChatGPT Go users are experiencing elevated errors.

We are working on implementing a mitigation.

Wed, Apr 29, 2026, 09:01 PM(24 minutes earlier)