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Copilot model Claude Fable 5 experiencing elevated errors

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Incident updates

Every update GitHub posted, oldest to newest, exactly as it appeared on their official status page.

  1. Investigating

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

  2. Investigating

    We are experiencing degraded availability for the Claude 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.

  3. Investigating

    The issues with our upstream model provider have been resolved, and Claude 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.

  4. Resolved

    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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