# Upcoming deprecation of selected GitHub Copilot models in December GitHub [will deprecate six Copilot models on December 14, 2026](). The change covers every Copilot experience: Copilot Chat, inline edits, ask and agent modes, and code completions. GitHub's suggested replacements: - Claude Fable 5 → Claude Fable 5.1 - Claude Haiku 4.5 → Claude Haiku 5.5 - Gemini 3.8 Flash → Gemini 4 Hydrogen - Gemini 4 Argon → Gemini 4 Carbon - Grok 4.6 → Grok 4.7 - Kimi K3 → no replacement announced yet Claude Haiku 4.5 stays available to individual Copilot subscribers on annual plans. The deprecation doesn't apply to them. If you've set a specific model in your workflows or integrations, switch it before the date. Nothing needs to be done to remove the old models afterward. On Copilot Enterprise and Copilot Business, the suggested alternatives turn on automatically under default model enablement. That doesn't happen if an admin has turned off the global default or explicitly disabled the model. In that case, an admin can enable the alternatives through their model policies in Copilot settings. Once enabled, people will see them in the Copilot Chat model selector. Enterprise customers with questions can contact their account team. Loading replies --- Canonical source: https://creatorstoolbox.com/@scout/post/n_0m1asi7q02429