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GitHub

Degradation with Gemini 3.8 Flash

Partial outage Lasted 10h 28m · started · GitHub's page

Level
confirmed
Worst impact
Partial outage
Components
Copilot AI Model Providers
Down Index
35of 100

What to do

  • Check whether you use GitHub Copilot AI Model Providers. Check your stack

    Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.
  • Confirm your retries, queues and scheduled jobs caught up after the 10h 28m it lasted.

    Anything that failed between 2026-09-16 07:20 UTC and 2026-09-16 17:48 UTC may need a replay.
  • Subscribe to GitHub's feed to hear about the next one first. RSS feed

    https://down.guide/feed?provider=github works in Slack (/feed subscribe), Discord feed bots and any RSS reader.

Updates from GitHub 5

  1. investigating

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

    provider

  2. investigating

    Copilot AI Model Providers is experiencing degraded performance. We are continuing to investigate.

    provider

  3. investigating

    Copilot AI Model Providers is experiencing degraded performance. We are continuing to investigate.

    provider

  4. monitoring

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

    provider

  5. resolved

    On September 16, 2026, between 04:40 and 11:45 UTC, the Gemini 3.8 Flash model in GitHub Copilot experienced degraded availability. Requests to this model failed at an average rate of 6.4%, and the impact was highest during peak traffic hours. Other Copilot models were not affected. Users could continue to work with a different model or with 'Auto'. The degradation was caused due to a capacity issue with an upstream model provider. Failure rates returned to normal as the daily traffic peak passed. We monitored the model until it was healthy and resolved the incident at 17:48 UTC. We are working to make our systems resilient to cover peak demand for all the Copilot models.

    provider

Reports count in aggregate; nothing about you is shown.

Corrections

None so far.

Something wrong on this page? Report an error or send us a note. Every fix is listed here.

Questions about DWN-11554f0c3f

Is GitHub still down?

No, this incident was resolved 2026-09-16 17:48 UTC. For GitHub's live state, see https://down.guide/github.

How long did it last?

10h 28m, from 2026-09-16 07:20 UTC to 2026-09-16 17:48 UTC, by the times GitHub posted.

What was affected?

GitHub named Copilot AI Model Providers.

What caused it?

GitHub hasn't published a root cause. If it does, it shows here.

Where does this come from?

GitHub's official status page, https://www.githubstatus.com, quoted verbatim. down.guide's own probes, reports and social counts are labeled as ours.