Elevated errors on GPT-5.4 Nano

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 38m it lasted.

  Anything that failed between 2026-11-02 17:46 UTC and 2026-11-02 18:24 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. investigatingNov 2, 2026, 5:46 PM UTC

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

   provider

2. investigatingNov 2, 2026, 5:46 PM UTC

   We are investigating reports of elevated errors on GPT-5.4 Nano

   provider

3. investigatingNov 2, 2026, 5:58 PM UTC

   We are experiencing degraded availability for the GPT-5.4 Nano model in Copilot products and IDE surfaces. This is due to an issue with an upstream model provider.

   provider

4. monitoringNov 2, 2026, 6:10 PM UTC

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

   provider

5. resolvedNov 2, 2026, 6:24 PM UTC

   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.

   provider

Corrections

None so far.

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