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GitHub Copilot Opus 4.8 Model Outage Resolved

GitHub's Copilot AI service experienced degraded availability for the Opus 4.8 model for less than an hour on June 16.

By The Downtime · Jun 24, 2026 · 9:15 PM

GitHub experienced a major disruption affecting the Opus 4.8 model in Copilot products and IDE surfaces on June 16, 2026, between 17:20 UTC and 18:15 UTC. The incident has been fully resolved.

GitHub Copilot is an AI-powered code completion service used by millions of developers and organizations. The company, owned by Microsoft, offers version control and development collaboration tools alongside its AI coding assistant.

The degradation stemmed from an issue with an upstream model provider. During the 55-minute window, some requests to the Opus 4.8 model failed or errored, while other Copilot models remained unaffected. GitHub recommended users select alternative models or use the 'Auto' setting as a workaround. The upstream provider resolved the underlying issue, and GitHub confirmed normal success rates have returned.

The incident is now closed.

🕒 Live updates (5)

resolved Jun 16, 6:15 PM

On June 16, 2026, between 17:20 UTC and 18:15 UTC, the Opus 4.8 model experienced degraded availability in GitHub Copilot. During this window, some requests to Opus 4.8 failed or errored. Other Copilot models were not affected and remained available as alternatives. This was caused by an issue with an upstream model provider. The upstream provider resolved the issue, and we monitored Opus 4.8 until success rates returned to normal. The incident is fully resolved.

monitoring Jun 16, 6:14 PM

The issues with our upstream model provider have been resolved, and Opus 4.8 is once again available in Copilot products and IDE surfaces.We will continue monitoring to ensure stability, but mitigation is complete.

monitoring Jun 16, 6:00 PM

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

investigating Jun 16, 5:47 PM

We are experiencing degraded availability for the Opus 4.8 model in Copilot products and IDE surfaces. This is due to an issue with an upstream model provider. While we work with them to resolve the issue, we recommend choosing another model or selecting 'Auto' to continue using Copilot.

investigating Jun 16, 5:45 PM

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

📎 Sources

Outage details are aggregated from official provider status pages. The Downtime reports them as a public service and is not affiliated with the providers named.

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