- Level
- confirmed
- Worst impact
- Degraded
- Components
- Copilot AI Model Providers
- Down Index
- 28of 100
What to do
Check whether you use GitHub Copilot 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 1h 30m it lasted.
Anything that failed between 2026-09-15 09:47 UTC and 2026-09-15 11:17 UTC may need a replay.Subscribe to GitHub Copilot's feed to hear about the next one first. RSS feed
https://down.guide/feed?provider=github-copilot works in Slack (/feed subscribe), Discord feed bots and any RSS reader.
Updates from GitHub Copilot 7
- investigating
We are investigating reports of impacted performance for some GitHub services.
provider
- monitoring
We are investigating degraded availability for Claude Fable 5.1, affecting some Copilot products and integrated development environments. The issue is caused by a problem with our upstream model provider. Customers can use another model or select Auto while we investigate.
provider
- investigating
Copilot AI Model Providers is experiencing degraded performance. We are continuing to investigate.
provider
- investigating
We continue to investigate intermittent errors affecting Claude Fable 5.1 in some Copilot products and integrated development environments. Customers can use another model or select Auto while we monitor the situation.
provider
- investigating
We continue to monitor intermittent errors affecting Claude Fable 5.1 in some Copilot products and integrated development environments. Customer-facing metrics have recovered, and we are awaiting confirmation from our upstream provider that the issue will not recur. Customers can select another model or Auto in the meantime.
provider
- investigating
The issues with our upstream model provider have been resolved, and Claude Fable 5.1 is once again available in Copilot products and IDE surfaces. We will continue monitoring to ensure stability, but mitigation is complete.
provider
- resolved
On September 15, 2026, between 05:45 and 09:50 UTC, the Claude Fable 5.1 model in GitHub Copilot experienced intermittently degraded availability, with an average error rate of 2.8%. During brief recurring 15 minute periods that recurred every ~45 minutes, availability for Claude Fable 5.1 dropped to a maximum of ~40% before recovering completely. Other Copilot models were not affected. Users could continue to work with a different model or with 'Auto'. The cause was an issue with an upstream model provider that intermittently rejected requests while overloaded. GitHub worked with the provider, who acknowledged and then resolved the underlying issue at 9:50 UTC, after which the model returned to constant normal availability. Once recovery was guaranteed, we resolved the incident at 11:17 UTC. To reduce the chance of recurrence and customer impact, GitHub is reviewing per-model availability alerting and automatic in-product fallback so that requests to a degraded model can shift to a healthy alternative more quickly.
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-ed8bbdef93
Is GitHub Copilot still down?
No, this incident was resolved 2026-09-15 11:17 UTC. For GitHub Copilot's live state, see https://down.guide/github-copilot.
How long did it last?
1h 30m, from 2026-09-15 09:47 UTC to 2026-09-15 11:17 UTC, by the times GitHub Copilot posted.
What was affected?
GitHub Copilot named Copilot AI Model Providers.
What caused it?
GitHub Copilot hasn't published a root cause. If it does, it shows here.
Where does this come from?
GitHub Copilot's official status page, https://www.githubstatus.com, quoted verbatim. down.guide's own probes, reports and social counts are labeled as ours.