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AU - Disruption with Gemini 2.5 Pro and Gemini 2.0 Flash in Copilot

Incident Report forGitHub Enterprise Cloud Australia

Resolved

On September 29, 2025, between 17:53 and 18:42 UTC, the Copilot service experienced a degradation of the Gemini 2.5 model due to an issue with our upstream provider. Approximately 24% of requests failed, affecting 56% of users during this period. No other models were impacted.

GitHub notified the upstream provider of the problem as soon as it was detected. The issue was resolved after the upstream provider rolled back a recent change that caused the disruption. GitHub will continue to enhance our monitoring and alerting systems to reduce the time it takes to detect and mitigate similar issues in the future.

PostedSep29,2025 -19:12 UTC

Update

The upstream model provided has resolved the issue and we are seeing full availability for Gemini 2.5 Pro and Gemini 2.0 Flash.

PostedSep29,2025 -19:12 UTC

Update

We are experiencing degraded availability for the Gemini 2.5 Pro & Gemini 2.0 Flash models in Copilot Chat, VS Code and other Copilot products. This is due to an issue with an upstream model provider. We are working with them to resolve the issue.

Other models are available and working as expected.

PostedSep29,2025 -18:40 UTC

Investigating

We are currently investigating this issue.

PostedSep29,2025 -18:39 UTC

Movatterモバイル変換

AU - Disruption with Gemini 2.5 Pro and Gemini 2.0 Flash in Copilot

Resolved

Update

Update

Investigating

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