Outage in GitHub Enterprise Cloud US

US - Degraded Gemini 2.5 Pro experience in Copilot

Resolved Minor
October 01, 2025 - Started 5 days ago - Lasted 1 day
Official incident page

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Outage Details

We are investigating reports of degraded performance for Copilot
Latest Updates ( sorted recent to last )
RESOLVED 4 days ago - at 10/02/2025 10:33PM

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.

INVESTIGATING 4 days ago - at 10/02/2025 10:26PM

We have confirmed that the fix for the lower token input limit for Gemini 2.5 Pro is in place and are currently testing our previous higher limit to verify that customers will experience no further impact.

INVESTIGATING 4 days ago - at 10/02/2025 05:13PM

The underlying issue for the lower token limits for Gemini 2.5 Pro has been identified and a fix is in progress. We will update again once we have tested and confirmed that the fix is correct and globally deployed.

INVESTIGATING 5 days ago - at 10/02/2025 02:52AM

We are continuing to work with our provider to resolve the issue where some Copilot requests using Gemini 2.5 Pro return an error indicating a bad request due to exceeding the input limit size.

INVESTIGATING 5 days ago - at 10/01/2025 06:16PM

We are continuing to investigate and test solutions internally while working with our model provider on a deeper investigation into the cause. We will update again when we have identified a mitigation.

INVESTIGATING 5 days ago - at 10/01/2025 05:37PM

We are testing other internal mitigations so that we can return to the higher maximum input length. We are still working with our upstream model provider to understand the contributing factors for this sudden decrease in input limits.

INVESTIGATING 5 days ago - at 10/01/2025 04:49PM

We are experiencing a service regression for the Gemini 2.5 Pro model in Copilot Chat, VS Code and other Copilot products. The maximum input length of Gemini 2.5 prompts been decreased. Long prompts or large context windows may result in errors. 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.

INVESTIGATING 5 days ago - at 10/01/2025 04:43PM

We are investigating reports of degraded performance for Copilot

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