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Degradation with Gemini 3.8 Flash

At a glance · GitHub's status

ResolvedLasted 10 h 27 min

First posted
on GitHub Enterprise Cloud data residency status
Ended
· marked resolved
Affects
GitHub Enterprise Cloud US
Edited
Not since we first saw it
Source
GitHub Enterprise Cloud data residency status · checked just now

In short

GitHub reported a partial outage affecting GitHub Enterprise Cloud US, starting 07:21 UTC on 16 Sep. GitHub marked it resolved at 17:48 UTC after 10 h 27 min. GitHub has since published a post-incident report.

GitHub says

GitHub's latest update, , in short excerpts.

On September 16, 2026, between 04:40 and 11:45 UTC, the Gemini 3.8 Flash model in GitHub Copilot experienced degraded availability.

GitHub,

Read the full update on GitHub's status page

Timeline

Times in UTC, GitHub's own where it gives them.

  1. 16 Sep

    GitHubFirst public postFrom GitHub's own incident history, before our archive started.

  2. +10 h 28 min

    GitHubResolved

What GitHub changed

GitHub adds updates to its incidents. We save every version (checked every minute) and list what changed. Quotes are short excerpts. The full text is on GitHub's page.

One version so far. If GitHub edits it, each change shows here with what was removed and added.

  1. First version we captured ·

    As first seen: postmortem · 1 service
    Status
    postmortem
    Services
    GitHub Enterprise Cloud US

    Seen by us · GitHub's timestamp · GitHub's page

Affected services

Official updates

Posted by GitHub Enterprise Cloud data residency status, newest first. The newest are quoted in their first sentence; the full text of each is on GitHub's page.

  1. Post-incident report ·

    On September 16, 2026, between 04:40 and 11:45 UTC, the Gemini 3.8 Flash model in GitHub Copilot experienced degraded availability.

  2. Resolved ·

    This incident has been resolved.

  3. Investigating ·

    The degradation affecting Copilot AI Model Providers has been mitigated.

  4. Investigating ·

    Copilot AI Model Providers is experiencing degraded performance.

  5. Investigating ·

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

Read the full update on GitHub's status page

Last updated