{"id":678828,"date":"2026-02-10T06:42:29","date_gmt":"2026-02-10T05:42:29","guid":{"rendered":"https:\/\/blog.jetbrains.com\/?post_type=ai&#038;p=678828"},"modified":"2026-02-17T02:37:17","modified_gmt":"2026-02-17T01:37:17","slug":"jetbrains-ide-codex","status":"publish","type":"ai","link":"https:\/\/blog.jetbrains.com\/ja\/ai\/2026\/02\/jetbrains-ide-codex\/","title":{"rendered":"JetBrains IDE \u3067 Codex \u304c\u5229\u7528\u53ef\u80fd\u306b\u306a\u308a\u307e\u3057\u305f"},"content":{"rendered":"\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Codex in JetBrains IDEs\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/1XkVsE9-ZK4?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><figcaption class=\"wp-element-caption\"><em>OpenAI \u306e Dominik Kundel \u3068 JetBrains \u306e Gleb Melnikov \u306b\u3088\u308b\u5b9f\u969b\u306e\u958b\u767a\u30bf\u30b9\u30af\u306e\u89e3\u8aac\u3092\u901a\u3057\u3066 JetBrains IDE \u3067\u306e Codex \u306e\u5b9f\u969b\u306e\u52d5\u4f5c\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/em><\/figcaption><\/figure>\n\n\n<p><!-- \/wp:embed --><\/p>\n<p>OpenA<!-- wp:embed {\"providerNameSlug\":\"youtube\",\"responsive\":true} \/-->I Codex \u304c JetBrains AI \u30c1\u30e3\u30c3\u30c8\u306b\u6a19\u6e96\u3067\u7d44\u307f\u8fbc\u307e\u308c\u3001IDE \u5185\u3067\u76f4\u63a5\u5b9f\u969b\u306e\u958b\u767a\u30bf\u30b9\u30af\u306b\u53d6\u308a\u7d44\u3080\u305f\u3081\u306e\u5f37\u529b\u306a\u9078\u629e\u80a2\u304c\u5897\u3048\u307e\u3057\u305f\u3002<\/p>\n<p>Codex \u306f 1 \u3064\u306e AI \u30c1\u30e3\u30c3\u30c8\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u5185\u3067 JetBrains AI \u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u3001ChatGPT \u30a2\u30ab\u30a6\u30f3\u30c8\u3001\u307e\u305f\u306f OpenAI API \u30ad\u30fc\u3092\u4ecb\u3057\u3066\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2 class=\"wp-block-heading\">IDE \u3067 Codex \u306e\u4f7f\u7528\u3092\u958b\u59cb\u3059\u308b<\/h2>\n<p>Codex \u306f JetBrains IDE\uff08\u30d0\u30fc\u30b8\u30e7\u30f3 2025.3 \u4ee5\u964d\uff09\u306e AI \u30c1\u30e3\u30c3\u30c8\u3067\u76f4\u63a5\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u6700\u65b0\u30d0\u30fc\u30b8\u30e7\u30f3\u306e AI Assistant \u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002Codex \u306f\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306e\u9078\u629e\u30e1\u30cb\u30e5\u30fc\u306b\u8868\u793a\u3055\u308c\u3001\u3059\u3050\u306b\u4f7f\u7528\u3092\u958b\u59cb\u3067\u304d\u307e\u3059\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-676157\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2026\/01\/Screenshot-2026-01-23-at-09.56.44.png\" alt=\"\" width=\"2006\" height=\"720\" \/><\/figure>\n<p>AI \u30c1\u30e3\u30c3\u30c8\u3092\u521d\u3081\u3066\u4f7f\u7528\u3059\u308b\u5834\u5408\u306f\u3001IDE \u306e\u53f3\u4e0a\u306b\u3042\u308b <em>JetBrains AI<\/em> \u30a6\u30a3\u30b8\u30a7\u30c3\u30c8\u3092\u958b\u304d\u3001<em>Let\u2019s Go<\/em>\uff08\u958b\u59cb\u3059\u308b\uff09\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066 AI Assistant \u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u624b\u9806\u306b\u5f93\u3063\u3066\u304f\u3060\u3055\u3044\u3002\u8a73\u7d30\u306a\u624b\u9806\u30ac\u30a4\u30c9\u306f\u3001<a href=\"https:\/\/www.jetbrains.com\/help\/ai-assistant\/installation-guide-ai-assistant.html#install-ai-assistant-plugin-and-activate-license\" target=\"_blank\" rel=\"noopener\">\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-676002\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2026\/01\/idea-login-n-1.png\" alt=\"\" width=\"1280\" height=\"254\" \/><\/figure>\n<h2 class=\"wp-block-heading\">\u67d4\u8edf\u306a\u8a8d\u8a3c\u30aa\u30d7\u30b7\u30e7\u30f3<\/h2>\n<p>JetBrains IDE \u5185\u3067\u306f\u8907\u6570\u306e\u65b9\u6cd5\u3067 Codex \u306e\u8a8d\u8a3c\u3092\u884c\u3048\u308b\u305f\u3081\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u597d\u307f\u306b\u6700\u9069\u306a\u69cb\u6210\u3092\u9078\u629e\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>JetBrains AI<br \/><\/strong>Codex \u3092 JetBrains AI \u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3\u306e\u4e00\u90e8\u3068\u3057\u3066\u76f4\u63a5\u4f7f\u7528\u3057\u307e\u3059\u3002<\/li>\n<li><strong>ChatGPT<\/strong><br \/>\u65e2\u5b58\u306e <a href=\"https:\/\/developers.openai.com\/codex\/auth#sign-in-with-chatgpt\" target=\"_blank\" rel=\"noopener\">ChatGPT \u30a2\u30ab\u30a6\u30f3\u30c8<\/a>\u3092\u4f7f\u7528\u3057\u3066\u30b5\u30a4\u30f3\u30a4\u30f3\u3057\u307e\u3059\u3002<\/li>\n<li><strong>BYOK\uff08Bring Your Own Key\uff09<\/strong><br \/>\u72ec\u81ea\u306e <a href=\"https:\/\/developers.openai.com\/codex\/auth#sign-in-with-an-api-key\" target=\"_blank\" rel=\"noopener\">OpenAI API \u30ad\u30fc<\/a>\u3092\u4f7f\u7528\u3057\u3066 Codex \u306b\u63a5\u7d9a\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-675932\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2026\/01\/codex-login1-1.png\" alt=\"\" width=\"1280\" height=\"720\" \/><\/figure>\n<h2 class=\"wp-block-heading\">\u671f\u9593\u9650\u5b9a\u306e\u7121\u6599\u30a2\u30af\u30bb\u30b9<\/h2>\n<p>Codex \u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306f\u671f\u9593\u9650\u5b9a\u3067 JetBrains AI\uff08\u7121\u6599\u4f53\u9a13\u3084\u7121\u6599\u5229\u7528\u67a0\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u542b\u3080\uff09\u304b\u3089\u30a2\u30af\u30bb\u30b9\u3057\u3001\u7121\u6599\u3067\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u3053\u306e<strong>\u30d7\u30ed\u30e2\u30fc\u30b7\u30e7\u30f3\u306f 1 \u6708 22 \u65e5\u306b\u958b\u59cb<\/strong>\u3055\u308c\u3001\u5272\u308a\u5f53\u3066\u3089\u308c\u305f\u30d7\u30ed\u30e2\u30fc\u30b7\u30e7\u30f3\u30af\u30ec\u30b8\u30c3\u30c8\u3092\u3059\u3079\u3066\u6d88\u8cbb\u3059\u308b\u307e\u3067\u6709\u52b9\u306b\u306a\u308a\u307e\u3059\u3002\u5f53\u793e\u306f\u968f\u6642\u3053\u306e\u7121\u6599\u30d7\u30ed\u30e2\u30fc\u30b7\u30e7\u30f3\u3092\u4e2d\u6b62\u3059\u308b\u6a29\u5229\u3092\u7559\u4fdd\u3057\u307e\u3059\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-675967\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2026\/01\/free-3.png\" alt=\"\" width=\"1280\" height=\"450\" \/><\/figure>\n<p>\u3053\u306e\u7121\u6599\u30aa\u30d5\u30a1\u30fc\u306f\u3001ChatGPT \u30a2\u30ab\u30a6\u30f3\u30c8\u307e\u305f\u306f OpenAI API \u30ad\u30fc\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\u306b\u306f\u9069\u7528\u3055\u308c\u307e\u305b\u3093\u3002\u4ed6\u306e JetBrains AI \u306e\u6a5f\u80fd\u3067\u306f\u5f15\u304d\u7d9a\u304d\u901a\u5e38\u901a\u308a\u306b AI \u30af\u30ec\u30b8\u30c3\u30c8\u304c\u6d88\u8cbb\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u7121\u6599\u671f\u9593\u304c\u7d42\u4e86\u3057\u3066\u3082 OpenAI \u306e Codex \u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306f\u5f15\u304d\u7d9a\u304d\u63d0\u4f9b\u3055\u308c\u307e\u3059\u304c\u3001\u5f53\u8a72\u671f\u9593\u304c\u7d42\u4e86\u3057\u305f\u5f8c\u306e\u4f7f\u7528\u3067\u306f AI \u30af\u30ec\u30b8\u30c3\u30c8\u304c\u6d88\u8cbb\u3055\u308c\u307e\u3059\u3002AI \u30af\u30ec\u30b8\u30c3\u30c8\u306e\u4f7f\u7528\u72b6\u6cc1\u306f\u3001<a href=\"https:\/\/www.jetbrains.com\/help\/ai-assistant\/licensing-and-subscriptions.html#track-quota-usage\" target=\"_blank\" rel=\"noopener\"><em>JetBrains AI <\/em>\u30a6\u30a3\u30b8\u30a7\u30c3\u30c8<\/a>\u3067\u628a\u63e1\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2 class=\"wp-block-heading\">JetBrains IDE \u3067\u306e Codex \u306e\u64cd\u4f5c<\/h2>\n<p>JetBrains IDE \u3067\u306f AI \u30c1\u30e3\u30c3\u30c8\u3092\u4ecb\u3057\u3066 Codex \u3092\u6709\u52b9\u306a\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306b\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002Codex \u3092\u4f7f\u7528\u3059\u308b\u3068\u3001IDE \u5185\u304b\u3089\u5b9f\u969b\u306e\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u30bf\u30b9\u30af\u3092\u59d4\u4efb\u3057\u3001\u958b\u767a\u8005\u306e\u6307\u793a\u306e\u4e0b\u3067\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306b\u63a8\u8ad6\u3001\u64cd\u4f5c\u3001\u304a\u3088\u3073\u30a4\u30c6\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u884c\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002Codex \u306f\u3055\u307e\u3056\u307e\u306a\u5bfe\u8a71\u30e2\u30fc\u30c9\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u5358\u7d14\u306a\u8cea\u554f\u56de\u7b54\u306e\u6a29\u9650\u304b\u3089\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u81ea\u5f8b\u7684\u306b\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u6a5f\u80fd\u307e\u3067\u3001\u3069\u306e\u7a0b\u5ea6\u306e\u81ea\u5f8b\u6027\u3092\u4e0e\u3048\u308b\u304b\u3092\u958b\u767a\u8005\u304c\u6c7a\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u308b OpenAI \u30e2\u30c7\u30eb\u3068\u63a8\u8ad6\u30d0\u30b8\u30a7\u30c3\u30c8\u3092 AI \u30c1\u30e3\u30c3\u30c8\u3067\u76f4\u63a5\u5207\u308a\u66ff\u3048\u53ef\u80fd\u306a\u305f\u3081\u3001\u4f5c\u696d\u4e2d\u306e\u30bf\u30b9\u30af\u306b\u5fdc\u3058\u3066\u5bb9\u6613\u306b\u63a8\u8ad6\u306e\u6df1\u3055\u3001\u901f\u5ea6\u3001\u304a\u3088\u3073\u30b3\u30b9\u30c8\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u53d6\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-676051\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2026\/01\/codex-model-choice.png\" alt=\"\" width=\"1070\" height=\"654\" \/><\/figure>\n<h2 class=\"wp-block-heading\">\u4eca\u5f8c\u306b\u3064\u3044\u3066<\/h2>\n<p>JetBrains \u306f OpenAI \u306a\u3069\u306e\u4e3b\u8981 AI \u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u3068\u63d0\u643a\u3057\u3001\u305d\u306e\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u3092 JetBrains IDE \u306b\u76f4\u63a5\u7d44\u307f\u8fbc\u3080\u3053\u3068\u3067\u3001\u3053\u308c\u3089\u306e\u30c4\u30fc\u30eb\u304c\u958b\u767a\u8005\u306e\u597d\u307f\u3092\u5c0a\u91cd\u3059\u308b\u5f62\u3067\u65e2\u5b58\u306e\u958b\u767a\u306e\u73fe\u5834\u3067\u6a5f\u80fd\u3059\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>Codex \u306e\u4f7f\u7528\u4e8b\u4f8b\u3084\u4eca\u5f8c\u671f\u5f85\u3059\u308b\u6a5f\u80fd\u306b\u95a2\u3059\u308b\u3054\u610f\u898b\u3092\u304a\u5f85\u3061\u3057\u3066\u3044\u307e\u3059\u3002JetBrains IDE \u306b\u7d44\u307f\u8fbc\u307f\u305f\u3044\u4ed6\u306e\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u3084\u6a5f\u80fd\u306f\u3042\u308a\u307e\u305b\u3093\u304b\uff1f \u3054\u610f\u898b\u3092\u304a\u805e\u304b\u305b\u3044\u305f\u3060\u304d\u3001JetBrains AI \u306e\u4eca\u5f8c\u306e\u65b9\u5411\u6027\u3092\u6c7a\u3081\u308b\u306e\u306b\u3054\u5354\u529b\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><strong>\u30aa\u30ea\u30b8\u30ca\u30eb\uff08\u82f1\u8a9e\uff09\u30d6\u30ed\u30b0\u6295\u7a3f\u8a18\u4e8b\u306e\u4f5c\u8005\uff1a<a href=\"http:\/\/blog.jetbrains.com\/author\/anna-maltceva-jetbrains-com\/\">Anna Maltseva<\/a><\/strong><\/p>","protected":false},"author":1394,"featured_media":680147,"comment_status":"closed","ping_status":"closed","template":"","categories":[89],"tags":[8168,9012],"cross-post-tag":[],"acf":[],"_links":{"self":[{"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/ai\/678828"}],"collection":[{"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/ai"}],"about":[{"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/types\/ai"}],"author":[{"embeddable":true,"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/users\/1394"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/comments?post=678828"}],"version-history":[{"count":10,"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/ai\/678828\/revisions"}],"predecessor-version":[{"id":681711,"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/ai\/678828\/revisions\/681711"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/media\/680147"}],"wp:attachment":[{"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/media?parent=678828"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/categories?post=678828"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/tags?post=678828"},{"taxonomy":"cross-post-tag","embeddable":true,"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/cross-post-tag?post=678828"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}