{"id":99370,"date":"2026-10-07T13:12:18","date_gmt":"2026-10-07T20:12:18","guid":{"rendered":"https:\/\/github.blog\/changelog\/2026-10-07-claude-haiku-5-5-in-github-copilot"},"modified":"2026-10-07T13:39:09","modified_gmt":"2026-10-07T20:39:09","slug":"claude-haiku-5-5-in-github-copilot","status":"publish","type":[3521],"link":"https:\/\/github.blog\/changelog\/2026-10-07-claude-haiku-5-5-in-github-copilot","title":{"rendered":"Claude Haiku 5.5 in GitHub Copilot"},"content":{"rendered":"<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body><p>Claude Haiku 5.5, Anthropic&rsquo;s newest lightweight model, is now generally available in GitHub Copilot. It is designed for fast, high-volume work like subagents, quick edits, and terminal tasks. In early testing, Haiku 5.5 matched Claude Sonnet 5 on many coding tasks while using significantly fewer tokens and steps.<\/p>\n<p>This model is billed at provider list pricing under usage-based billing. See <a href=\"https:\/\/docs.github.com\/copilot\/reference\/copilot-billing\/models-and-pricing\">Models and pricing for GitHub Copilot<\/a> for details.<\/p>\n<h3 id=\"availability-in-github-copilot\" id=\"availability-in-github-copilot\" ><a class=\"heading-link\" href=\"#availability-in-github-copilot\">Availability in GitHub Copilot<span class=\"heading-hash pl-2 text-italic text-bold\" aria-hidden=\"true\"><\/span><\/a><\/h3>\n<p>Claude Haiku 5.5 is available to Copilot Pro, Pro+, Max, Business, and Enterprise users. You can select the model in the model picker in:<\/p>\n<ul>\n<li>Visual Studio Code<\/li>\n<li>Visual Studio<\/li>\n<li>Copilot CLI<\/li>\n<li>GitHub Copilot cloud agent<\/li>\n<li>GitHub Copilot app<\/li>\n<li>github.com<\/li>\n<li>GitHub Mobile on iOS and Android<\/li>\n<li>JetBrains IDEs<\/li>\n<li>Xcode<\/li>\n<li>Eclipse<\/li>\n<\/ul>\n<p>Rollout will be gradual. Check back soon if you don&rsquo;t see it yet.<\/p>\n<h3 id=\"enabling-access\" id=\"enabling-access\" ><a class=\"heading-link\" href=\"#enabling-access\">Enabling access<span class=\"heading-hash pl-2 text-italic text-bold\" aria-hidden=\"true\"><\/span><\/a><\/h3>\n<p>Copilot Enterprise and Copilot Business plan administrators can manage access to Claude Haiku 5.5 through the model policy in Copilot settings. Under default model enablement, new models are automatically enabled unless an administrator has turned off the global default or explicitly disables this model.<\/p>\n<h3 id=\"learn-more\" id=\"learn-more\" ><a class=\"heading-link\" href=\"#learn-more\">Learn more<span class=\"heading-hash pl-2 text-italic text-bold\" aria-hidden=\"true\"><\/span><\/a><\/h3>\n<p>To explore all models available in GitHub Copilot, see our <a href=\"https:\/\/docs.github.com\/copilot\/reference\/ai-models\/supported-models\">documentation on models<\/a> and get started with Copilot.<\/p>\n<h3 id=\"share-your-feedback\" id=\"share-your-feedback\" ><a class=\"heading-link\" href=\"#share-your-feedback\">Share your feedback<span class=\"heading-hash pl-2 text-italic text-bold\" aria-hidden=\"true\"><\/span><\/a><\/h3>\n<p>Join the <a href=\"https:\/\/github.com\/orgs\/community\/discussions\/categories\/copilot-conversations\">GitHub Community<\/a> to share your feedback.<\/p>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"<p>Claude Haiku 5.5, Anthropic&rsquo;s newest lightweight model, is now generally available in GitHub Copilot. It is designed for fast, high-volume work like subagents, quick edits, and terminal tasks. In early&hellip;<\/p>\n","protected":false},"author":2106,"featured_media":99371,"template":"","meta":{"_gh_post_show_toc":"","_gh_post_is_no_robots":"","_gh_post_is_featured":"","_gh_post_is_excluded":"","_gh_post_is_unlisted":"","_gh_post_related_link_1":"","_gh_post_related_link_2":"","_gh_post_related_link_3":"","_gh_post_sq_img":"","_gh_post_sq_img_id":"","_gh_post_cta_title":"","_gh_post_cta_text":"","_gh_post_cta_link":"","_gh_post_cta_button":"","_gh_post_recirc_hide":"","_gh_post_recirc_col_1":"","_gh_post_recirc_col_2":"","_gh_post_recirc_col_3":"","_gh_post_recirc_col_4":"","_featured_video":"","_gh_post_additional_query_params":"","footnotes":"","_links_to":"","_links_to_target":"","primary_cta":"","primary_cta_url":"","secondary_cta":"","secondary_cta_url":""},"label":[2765],"group":[3925],"coauthors":[3100],"class_list":["post-99370","changelog","type-changelog","status-publish","has-post-thumbnail","hentry","changelog-type-new-releases","changelog-label-copilot","changelog-group-10-2026"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.6 (Yoast SEO v28.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Claude Haiku 5.5 in GitHub Copilot - GitHub Changelog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/github.blog\/changelog\/2026-10-07-claude-haiku-5-5-in-github-copilot\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Claude Haiku 5.5 in GitHub Copilot \u00b7 GitHub Changelog\" \/>\n<meta property=\"og:description\" content=\"Claude Haiku 5.5, Anthropic&rsquo;s newest lightweight model, is now generally available in GitHub Copilot. It is designed for fast, high-volume work like subagents, quick edits, and terminal tasks. In early&hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/github.blog\/changelog\/2026-10-07-claude-haiku-5-5-in-github-copilot\/\" \/>\n<meta property=\"og:site_name\" content=\"The GitHub Blog\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-07T20:39:09+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/github.blog\/wp-content\/uploads\/2026\/10\/667862135-8b23d51b-0f8b-4642-97bd-f785a7211718.png\" \/>\n\t<meta property=\"og:image:width\" content=\"2064\" \/>\n\t<meta property=\"og:image:height\" content=\"600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n\t<meta name=\"twitter:label2\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data2\" content=\"Allison\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/github.blog\\\/changelog\\\/2026-10-07-claude-haiku-5-5-in-github-copilot\\\/\",\"url\":\"https:\\\/\\\/github.blog\\\/changelog\\\/2026-10-07-claude-haiku-5-5-in-github-copilot\\\/\",\"name\":\"Claude Haiku 5.5 in GitHub Copilot - The GitHub Blog\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/github.blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/github.blog\\\/changelog\\\/2026-10-07-claude-haiku-5-5-in-github-copilot\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/github.blog\\\/changelog\\\/2026-10-07-claude-haiku-5-5-in-github-copilot\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/github.blog\\\/wp-content\\\/uploads\\\/2026\\\/10\\\/667862451-51645e23-ca14-47fa-a39b-3a383bdea6d9.png?fit=2064%2C600\",\"datePublished\":\"2026-10-07T20:12:18+00:00\",\"dateModified\":\"2026-10-07T20:39:09+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/github.blog\\\/changelog\\\/2026-10-07-claude-haiku-5-5-in-github-copilot\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/github.blog\\\/changelog\\\/2026-10-07-claude-haiku-5-5-in-github-copilot\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/github.blog\\\/changelog\\\/2026-10-07-claude-haiku-5-5-in-github-copilot\\\/#primaryimage\",\"url\":\"https:\\\/\\\/github.blog\\\/wp-content\\\/uploads\\\/2026\\\/10\\\/667862451-51645e23-ca14-47fa-a39b-3a383bdea6d9.png?fit=2064%2C600\",\"contentUrl\":\"https:\\\/\\\/github.blog\\\/wp-content\\\/uploads\\\/2026\\\/10\\\/667862451-51645e23-ca14-47fa-a39b-3a383bdea6d9.png?fit=2064%2C600\",\"width\":2064,\"height\":600,\"caption\":\"The Copilot model picker showing Claude Haiku 5.5\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/github.blog\\\/changelog\\\/2026-10-07-claude-haiku-5-5-in-github-copilot\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/github.blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Changelogs\",\"item\":\"https:\\\/\\\/github.blog\\\/changelog\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Claude Haiku 5.5 in GitHub Copilot\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/github.blog\\\/#website\",\"url\":\"https:\\\/\\\/github.blog\\\/\",\"name\":\"The GitHub Blog\",\"description\":\"Updates, ideas, and inspiration from GitHub to help developers build and design software.\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/github.blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Claude Haiku 5.5 in GitHub Copilot - GitHub Changelog","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/github.blog\/changelog\/2026-10-07-claude-haiku-5-5-in-github-copilot\/","og_locale":"en_US","og_type":"article","og_title":"Claude Haiku 5.5 in GitHub Copilot \u00b7 GitHub Changelog","og_description":"Claude Haiku 5.5, Anthropic&rsquo;s newest lightweight model, is now generally available in GitHub Copilot. It is designed for fast, high-volume work like subagents, quick edits, and terminal tasks. In early&hellip;","og_url":"https:\/\/github.blog\/changelog\/2026-10-07-claude-haiku-5-5-in-github-copilot\/","og_site_name":"The GitHub Blog","article_modified_time":"2026-10-07T20:39:09+00:00","og_image":[{"width":2064,"height":600,"url":"https:\/\/github.blog\/wp-content\/uploads\/2026\/10\/667862135-8b23d51b-0f8b-4642-97bd-f785a7211718.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"1 minute","Written by":"Allison"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/github.blog\/changelog\/2026-10-07-claude-haiku-5-5-in-github-copilot\/","url":"https:\/\/github.blog\/changelog\/2026-10-07-claude-haiku-5-5-in-github-copilot\/","name":"Claude Haiku 5.5 in GitHub Copilot - The GitHub Blog","isPartOf":{"@id":"https:\/\/github.blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/github.blog\/changelog\/2026-10-07-claude-haiku-5-5-in-github-copilot\/#primaryimage"},"image":{"@id":"https:\/\/github.blog\/changelog\/2026-10-07-claude-haiku-5-5-in-github-copilot\/#primaryimage"},"thumbnailUrl":"https:\/\/github.blog\/wp-content\/uploads\/2026\/10\/667862451-51645e23-ca14-47fa-a39b-3a383bdea6d9.png?fit=2064%2C600","datePublished":"2026-10-07T20:12:18+00:00","dateModified":"2026-10-07T20:39:09+00:00","breadcrumb":{"@id":"https:\/\/github.blog\/changelog\/2026-10-07-claude-haiku-5-5-in-github-copilot\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/github.blog\/changelog\/2026-10-07-claude-haiku-5-5-in-github-copilot\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/github.blog\/changelog\/2026-10-07-claude-haiku-5-5-in-github-copilot\/#primaryimage","url":"https:\/\/github.blog\/wp-content\/uploads\/2026\/10\/667862451-51645e23-ca14-47fa-a39b-3a383bdea6d9.png?fit=2064%2C600","contentUrl":"https:\/\/github.blog\/wp-content\/uploads\/2026\/10\/667862451-51645e23-ca14-47fa-a39b-3a383bdea6d9.png?fit=2064%2C600","width":2064,"height":600,"caption":"The Copilot model picker showing Claude Haiku 5.5"},{"@type":"BreadcrumbList","@id":"https:\/\/github.blog\/changelog\/2026-10-07-claude-haiku-5-5-in-github-copilot\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/github.blog\/"},{"@type":"ListItem","position":2,"name":"Changelogs","item":"https:\/\/github.blog\/changelog\/"},{"@type":"ListItem","position":3,"name":"Claude Haiku 5.5 in GitHub Copilot"}]},{"@type":"WebSite","@id":"https:\/\/github.blog\/#website","url":"https:\/\/github.blog\/","name":"The GitHub Blog","description":"Updates, ideas, and inspiration from GitHub to help developers build and design software.","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/github.blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"}]}},"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/github.blog\/wp-json\/wp\/v2\/changelogs\/99370","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/github.blog\/wp-json\/wp\/v2\/changelogs"}],"about":[{"href":"https:\/\/github.blog\/wp-json\/wp\/v2\/types\/changelog"}],"author":[{"embeddable":true,"href":"https:\/\/github.blog\/wp-json\/wp\/v2\/users\/2106"}],"version-history":[{"count":2,"href":"https:\/\/github.blog\/wp-json\/wp\/v2\/changelogs\/99370\/revisions"}],"predecessor-version":[{"id":99374,"href":"https:\/\/github.blog\/wp-json\/wp\/v2\/changelogs\/99370\/revisions\/99374"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/github.blog\/wp-json\/wp\/v2\/media\/99371"}],"wp:attachment":[{"href":"https:\/\/github.blog\/wp-json\/wp\/v2\/media?parent=99370"}],"wp:term":[{"taxonomy":"changelog-type","embeddable":true,"href":"https:\/\/github.blog\/wp-json\/wp\/v2\/type?post=99370"},{"taxonomy":"changelog-label","embeddable":true,"href":"https:\/\/github.blog\/wp-json\/wp\/v2\/label?post=99370"},{"taxonomy":"changelog-group","embeddable":true,"href":"https:\/\/github.blog\/wp-json\/wp\/v2\/group?post=99370"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/github.blog\/wp-json\/wp\/v2\/coauthors?post=99370"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}