GitHub Copilot Degraded Performance - August 1, 2026

We are investigating reports of degraded performance for Copilot AI Model Providers

We are seeing increased error rates from specific upstream AI Model Providers

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.

The degradation affecting Copilot AI Model Providers has been mitigated. We are monitoring to ensure stability.

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.

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.