GitHub Enterprise Cloud JP incident
Errors with the Fable 5 Model in Copilot
Resolved after 1 hour 3 minutes, affecting prod-jpw-01 - Copilot AI Model Providers (Copilot AI Model Providers), on August 13, 2026.
This incident has been resolved. Thank you for your patience and understanding as we addressed this issue. A detailed root cause analysis will be shared as soon as it is available.
Affected components
Update timeline
- investigating Aug 13, 2026, 02:43 PM UTC
We are investigating reports of degraded performance for Copilot AI Model Providers
- investigating Aug 13, 2026, 02:50 PM UTC
We are experiencing degraded availability for the Fable 5 model in Copilot products and IDE surfaces. This is due to an issue with an upstream model provider. While we work with them to resolve the issue, we recommend choosing another model or selecting 'Auto' to continue using Copilot.
- investigating Aug 13, 2026, 03:23 PM UTC
We are seeing modest recovery, but are still experiencing degraded availability for the Fable 5 model in Copilot products and IDE surfaces. This is due to an issue with an upstream model provider. While we work with them to resolve the issue, we recommend choosing another model or selecting 'Auto'...
- investigating Aug 13, 2026, 03:47 PM UTC
The issues with our upstream model provider have been resolved, and Fable 5 is once again available in Copilot products and IDE surfaces. We will continue monitoring to ensure stability, but mitigation is complete.
- resolved Aug 13, 2026, 03:47 PM UTC
This incident has been resolved. Thank you for your patience and understanding as we addressed this issue. A detailed root cause analysis will be shared as soon as it is available.
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