Mar 5, 01:13 UTC
Resolved - 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.

Mar 5, 01:13 UTC
Update - The issues with our upstream model provider have been resolved, and gpt-5.3-codex is once again available in Copilot Chat and across IDE integrations. We will continue monitoring to ensure stability, but mitigation is complete.

Mar 5, 00:53 UTC
Update - We are experiencing degraded availability for the gpt-5.3-codex model in Copilot Chat, VS Code and other Copilot products. This is due to an issue with an upstream model provider. We are working with them to resolve the issue.

Mar 5, 00:47 UTC
Investigating - We are investigating reports of degraded performance for Copilot