GitHub Status – Incident with Copilot (www.githubstatus.com)

GitHub is reporting degraded availability for the Claude Sonnet 3.7 and Claude Sonnet 4 models across Copilot Chat, the VS Code Copilot extension, and other Copilot products. The outage is attributed to an issue with an upstream model provider; GitHub says it’s working with that provider to restore service. Important context: this is limited to those Claude Sonnet variants — other Copilot models remain available and are functioning normally. For the AI/ML and developer community this matters because teams that depend on specific Sonnet model behaviors (accuracy, code style, hallucination characteristics or latency) may see interruptions to coding workflows, automated code review, or in-IDE assistance. Practically, users can switch to other Copilot-backed models as a short-term workaround, but differences in capability and output will affect prompts and integration tests. The incident also highlights operational risks of relying on third-party model providers and underscores the value of multi-provider fallback strategies, model-agnostic testing, and observability in production ML systems. Monitor GitHub’s status updates for resolution and consider enabling alternative model backends where continuity is critical.