Errors with the Fable 5 Model in Copilot
GitHub · Last saved provider status: resolved
The last saved event status is not the current service status. Source lists can be incomplete, and disappearance from a source does not confirm recovery. Open the current report or the official source for newer evidence.
Saved event details
- Provider status
- resolved
- Provider impact
- minor
- Provider record created
- 13 Aug 2026, 14:43:25 UTC
- Provider record updated
- 25 Aug 2026, 12:08:46 UTC
- Explicit provider start
- 13 Aug 2026, 14:43:25 UTC
- Explicit provider end
- 13 Aug 2026, 15:47:22 UTC
Affected components reported by the provider
- Copilot AI Model Providers
cnnb39dkkk82
These associations describe this event’s reported scope. They do not establish current component availability or verified dependencies.
A record creation time is not necessarily an outage start. Unreported times remain unavailable. We do not calculate downtime from collection times.
Provider updates in saved revisions
Latest first. We show up to 100 distinct updates from the latest 20 saved content revisions. Revised wording at the same provider time is retained separately.
- resolved
On August 13th, 2026, between approximately 14:06 and 15:47 UTC, the Copilot service experienced a degradation of the Claude Fable 5 model due to an issue with our upstream provider. Users encountered elevated error rates, peaking at 43% and averaging 12%. Users who selected Auto or alternative models were unaffected.<br /><br />The issue was resolved by a mitigation put in place by our provider. GitHub is working with our provider to further improve the resiliency of the service to prevent similar incidents in the future.
Seen in a saved revision at 06 Oct 2026, 13:58:39 UTC - investigating
The issues with our upstream model provider have been resolved, and Fable 5 is once again available in Copilot products and IDE surfaces.<br /><br />We will continue monitoring to ensure stability, but mitigation is complete.
Seen in a saved revision at 06 Oct 2026, 13:58:39 UTC - investigating
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' to continue using Copilot.
Seen in a saved revision at 06 Oct 2026, 13:58:39 UTC - investigating
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.
Seen in a saved revision at 06 Oct 2026, 13:58:39 UTC - investigating
We are investigating reports of degraded performance for Copilot AI Model Providers
Seen in a saved revision at 06 Oct 2026, 13:58:39 UTC