GitHub Copilot Outage History

GitHub Copilot experienced a major service disruption lasting 1.4 hours, affecting Copilot Cloud Agent and Copilot Code Review functionality due to OpenAI model unavailability. GitHub mitigated the impact by shifting requests to alternative models while the primary OpenAI models were down. The incident was fully resolved with normal service restored.

GitHub Copilot experienced degraded performance for 52 minutes on May 26, 2026. The service disruption was classified as minor and affected Copilot functionality. The issue was mitigated and resolved, with GitHub monitoring the service to ensure stability before declaring the incident fully resolved.

GitHub experienced a major incident affecting Copilot, Webhooks, and Actions services for 1.4 hours, with users reporting degraded availability and performance issues. The incident began with reports of problems with Copilot and Webhooks, then expanded to include Actions experiencing degraded performance. GitHub identified the root cause, implemented mitigations for all affected services, and fully resolved the incident after monitoring for stability.

GitHub experienced a 32-minute incident affecting multiple services including Actions, Codespaces, Copilot, and Packages, with users encountering errors loading web pages and delays in Actions and Copilot Cloud Agent runs. The degraded performance impacted core GitHub functionality across these key development tools. A mitigation was successfully applied to restore services, with Actions requiring additional time to process queued work before full recovery.

GitHub Copilot experienced degraded performance for 2.7 hours, with users encountering increased latency and intermittent errors when viewing or creating agent sessions. The service degradation affected Copilot's success rates and response times, impacting the overall user experience. The incident was mitigated and performance returned to baseline levels, with the service being monitored for stability before full resolution.

GitHub Copilot experienced degraded performance and Copilot Coding Agent session logs were unavailable in the UI for 48 minutes. The incident affected the Copilot service's overall functionality and user interface components. The issue was resolved after investigation and normal operations were restored.

GitHub Copilot experienced degraded performance due to issues with the gpt-5.3-codex model from an upstream provider, affecting Copilot Chat, VS Code, and other Copilot products. The incident lasted 28 minutes and was resolved by working with the upstream model provider. GitHub has indicated that a detailed root cause analysis will be shared once available.

GitHub Copilot experienced degraded performance for 40 minutes, with some users reporting that Claude Opus 4.6 Fast was not appearing in their interface. The incident affected Copilot services, though all users retained access to Claude Opus 4.6 throughout the issue. The problem was resolved after investigation and monitoring confirmed service restoration.

GitHub experienced a major incident affecting multiple services including Copilot, Actions, Issues, Pull Requests, Git Operations, API Requests, Webhooks, and Codespaces, with users reporting degraded availability and performance across these components. The incident lasted 1.2 hours, with GitHub identifying the root cause and applying a mitigation that led to gradual recovery of all affected services. All services were fully restored and operating normally by the time the incident was resolved.

GitHub Copilot experienced degraded performance due to networking issues with model requests and a spike in errors during agent sessions. The incident affected Copilot functionality for 28 minutes. The issue was resolved and GitHub indicated a detailed root cause analysis would follow.