GitHub· Copilot

Upcoming August 2026 model deprecations in GitHub Copilot

We will deprecate the following models across all GitHub Copilot experiences (including Copilot Chat, inline edits, ask and agent modes, and code completions), on September 1st, 2026 Model Deprecation date Suggested alternative Gemini 3.1 Pro 9-1-2026 Gemini 3.6 Flash Claude Opus 4.5 9-1-2026 Claude Opus 4.7, Claude Opus 4.8, or Claude Opus 5 Claude Opus 4.6 9-1-2026 Claude Opus 4.7, Claude Opus 4.8, or Claude Opus 5 Claude Sonnet 4.5 9-1-2026 Claude Sonnet 5 Claude Sonnet 4.6* 9-1-2026 Claude Sonnet 5 Raptor Mini 9-1-2026 MAI-Code-1-Flash Claude Sonnet 4.6 will remain available to individual GitHub Copilot subscribers on annual plans so they retain a Sonnet offering. The deprecation of Claude Sonnet 4.6 does not apply to these customers. Please update your workflows and integrations to use the supported model before these dates. Copilot Enterprise administrators may need to enable access to the alternative model through their model policies in Copilot settings. As an administrator, you can verify availability by checking your individual Copilot settings and confirming that the policy is enabled for the specific model. …

Announced

31 Jul 2026 21:26 UTC