--- title: Upcoming deprecation of selected GitHub Copilot models... description: GitHub will deprecate several Copilot models on October 19, 2026, including Gemini 3.7 Flash, GPT-5.5, GPT-5.4, GPT-5.4 mini, GPT-5 mini, and Grok 4.5, across... canonical: https://daily.dev/posts/upcoming-deprecation-of-selected-github-copilot-models-in-mid-october-0ps4xzxpb twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Upcoming deprecation of selected GitHub Copilot models in mid-October | daily.dev og:description: GitHub will deprecate several Copilot models on October 19, 2026, including Gemini 3.7 Flash, GPT-5.5, GPT-5.4, GPT-5.4 mini, GPT-5 mini, and Grok 4.5, across... og:url: https://daily.dev/posts/upcoming-deprecation-of-selected-github-copilot-models-in-mid-october-0ps4xzxpb og:image: https://api.daily.dev/og/posts/0pS4XzxpB.png og:image:alt: Upcoming deprecation of selected GitHub Copilot models in mid-October og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Upcoming deprecation of selected GitHub Copilot models in mid-October **[GitHub Changelog](https://daily.dev/sources/github_updates)** · 2 min read · 0 upvotes · 0 comments ## Summary GitHub will deprecate several Copilot models on October 19, 2026, including Gemini 3.7 Flash, GPT-5.5, GPT-5.4, GPT-5.4 mini, GPT-5 mini, and Grok 4.5, across all Copilot experiences such as Chat, inline edits, ask/agent modes, and code completions. Suggested alternatives include Gemini 3.8 Flash, GPT-5.6 Sol, GPT-5.6 Luna, and Grok 4.6. Suggested alternatives are auto-enabled for Enterprise and Business customers under default model enablement unless disabled by an administrator. No action is needed to remove deprecated models after the cutoff, but teams should update workflows and integrations beforehand. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### Which GitHub Copilot models are being deprecated on October 19, 2026? GitHub Copilot is deprecating Gemini 3.7 Flash, GPT-5.5, GPT-5.4, GPT-5.4 mini, GPT-5 mini, and Grok 4.5 on October 19, 2026, across all Copilot experiences including Chat, inline edits, ask and agent modes, and code completions. Suggested replacements are Gemini 3.8 Flash, GPT-5.6 Sol, GPT-5.6 Luna, and Grok 4.6 respectively. _Track which Copilot model deprecations affect your workflow before they land on daily.dev._ ### What should I use to replace GPT-5.4 mini or GPT-5 mini in GitHub Copilot after they're deprecated? GPT-5.6 Luna is the suggested replacement for both GPT-5.4 mini and GPT-5 mini in GitHub Copilot, effective when those models are deprecated on October 19, 2026. Under default model enablement, GPT-5.6 Luna is automatically enabled for Copilot Enterprise and Business customers unless an administrator disabled the global default or the model itself. _Teams migrating Copilot model configs can follow coverage of these swaps on daily.dev._ ### Do I need to do anything after GitHub Copilot deprecates a model I'm using? No action is required to remove a model after it has been deprecated in GitHub Copilot. However, workflows and integrations should be updated to use supported models before the deprecation date, since the deprecated model will no longer be available in the Copilot Chat model selector or other Copilot experiences. _Keep integrations aligned with supported Copilot models by following changes like this on daily.dev._ ## Similar posts on daily.dev - [Upcoming deprecation of selected GitHub Copilot models](https://daily.dev/posts/upcoming-deprecation-of-selected-github-copilot-models-dawvbv51e) · GitHub Changelog · 0 upvotes · 0 comments - [Upcoming deprecation of Gemini 3 Pro and GPT-5.1 models](https://daily.dev/posts/upcoming-deprecation-of-gemini-3-pro-and-gpt-5-1-models-fobhu97ll) · GitHub Changelog · 0 upvotes · 0 comments - [Upcoming deprecation of Gemini 2.5 Pro and Gemini 3 Flash](https://daily.dev/posts/upcoming-deprecation-of-gemini-2-5-pro-and-gemini-3-flash-dkgkyinhp) · GitHub Changelog · 2 upvotes · 0 comments --- Tags: [#github](https://daily.dev/tags/github), [#google-gemini](https://daily.dev/tags/google-gemini), [#gpt](https://daily.dev/tags/gpt), [#grok](https://daily.dev/tags/grok) [View this post on daily.dev](https://daily.dev/posts/upcoming-deprecation-of-selected-github-copilot-models-in-mid-october-0ps4xzxpb) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Upcoming deprecation of selected GitHub Copilot models in mid-October","url":"https://daily.dev/posts/upcoming-deprecation-of-selected-github-copilot-models-in-mid-october-0ps4xzxpb","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/upcoming-deprecation-of-selected-github-copilot-models-in-mid-october-0ps4xzxpb"},"datePublished":"2026-09-18T19:36:22.787Z","dateModified":"2026-09-18T19:36:42.673Z","description":"GitHub will deprecate several Copilot models on October 19, 2026, including Gemini 3.7 Flash, GPT-5.5, GPT-5.4, GPT-5.4 mini, GPT-5 mini, and Grok 4.5, across...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/e63f5cfad5727723a4bc0d9642fb924e?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/e63f5cfad5727723a4bc0d9642fb924e?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"GitHub Changelog","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"GitHub Changelog","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/15004b7835da4d89b02b115871f0f6dc","url":"https://daily.dev/sources/github_updates"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/upcoming-deprecation-of-selected-github-copilot-models-in-mid-october-0ps4xzxpb","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"github,google-gemini,gpt,grok","timeRequired":"PT2M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"GitHub Changelog","item":"https://daily.dev/sources/github_updates"},{"@type":"ListItem","position":3,"name":"Upcoming deprecation of selected GitHub Copilot models in mid-October"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/upcoming-deprecation-of-selected-github-copilot-models-in-mid-october-0ps4xzxpb#faq","mainEntity":[{"@type":"Question","name":"Which GitHub Copilot models are being deprecated on October 19, 2026?","acceptedAnswer":{"@type":"Answer","text":"GitHub Copilot is deprecating Gemini 3.7 Flash, GPT-5.5, GPT-5.4, GPT-5.4 mini, GPT-5 mini, and Grok 4.5 on October 19, 2026, across all Copilot experiences including Chat, inline edits, ask and agent modes, and code completions. Suggested replacements are Gemini 3.8 Flash, GPT-5.6 Sol, GPT-5.6 Luna, and Grok 4.6 respectively. Track which Copilot model deprecations affect your workflow before they land on daily.dev."}},{"@type":"Question","name":"What should I use to replace GPT-5.4 mini or GPT-5 mini in GitHub Copilot after they're deprecated?","acceptedAnswer":{"@type":"Answer","text":"GPT-5.6 Luna is the suggested replacement for both GPT-5.4 mini and GPT-5 mini in GitHub Copilot, effective when those models are deprecated on October 19, 2026. Under default model enablement, GPT-5.6 Luna is automatically enabled for Copilot Enterprise and Business customers unless an administrator disabled the global default or the model itself. Teams migrating Copilot model configs can follow coverage of these swaps on daily.dev."}},{"@type":"Question","name":"Do I need to do anything after GitHub Copilot deprecates a model I'm using?","acceptedAnswer":{"@type":"Answer","text":"No action is required to remove a model after it has been deprecated in GitHub Copilot. However, workflows and integrations should be updated to use supported models before the deprecation date, since the deprecated model will no longer be available in the Copilot Chat model selector or other Copilot experiences. Keep integrations aligned with supported Copilot models by following changes like this on daily.dev."}}]} ```