{"id":38350,"date":"2025-01-31T13:31:47","date_gmt":"2025-01-31T21:31:47","guid":{"rendered":"https:\/\/azure.microsoft.com\/en-us\/blog\/?p=38350"},"modified":"2025-12-05T05:15:52","modified_gmt":"2025-12-05T13:15:52","slug":"announcing-the-availability-of-the-o3-mini-reasoning-model-in-microsoft-azure-openai-service","status":"publish","type":"post","link":"https:\/\/azure.microsoft.com\/en-us\/blog\/announcing-the-availability-of-the-o3-mini-reasoning-model-in-microsoft-azure-openai-service\/","title":{"rendered":"Announcing the availability of the o3-mini reasoning model in Microsoft Azure OpenAI Service"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">We are pleased to announce that <strong>OpenAI o3-mini is now available in <a href=\"https:\/\/azure.microsoft.com\/products\/ai-services\/openai-service\/\">Microsoft Azure OpenAI Service<\/a><\/strong>. o3-mini adds significant cost efficiencies compared with o1-mini with enhanced reasoning, with new features like reasoning effort control and tools, while providing comparable or better responsiveness.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">o3-mini\u2019s advanced capabilities, combined with its efficiency gains, make it a powerful tool for developers and enterprises looking to optimize their AI applications.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">With faster performance and lower latency,<strong> <\/strong>o3-mini is designed to handle complex reasoning workloads while maintaining efficiency.<\/p>\n\n\n\n<figure class=\"wp-block-msx-ump-embed wp-block-msx-ump-embed\" class=\"wp-block-msxcm-ump-embed\">\n\t<div class=\"wp-block-embed__wrapper\">\n\t\t<universal-media-player id=\"ump-69e706c20fffa\"><\/universal-media-player>\n\t\t<script type=\"module\">\n\t\t\tconst currentTheme =\n\t\t\t\tlocalStorage.getItem('msxcmCurrentTheme') ||\n\t\t\t\t(window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light');\n\n\t\t\t\/\/ Modify player theme based on localStorage value.\n\t\t\tlet options = {\"autoplay\":false,\"hideControls\":null,\"language\":\"en-us\",\"loop\":false,\"partnerName\":\"cloud-blogs\",\"poster\":\"https:\\\/\\\/cdn-dynmedia-1.microsoft.com\\\/is\\\/image\\\/microsoftcorp\\\/eX994cQVFZw_video_en-us?wid=1280\",\"title\":\"\",\"sources\":[{\"src\":\"https:\\\/\\\/cdn-dynmedia-1.microsoft.com\\\/is\\\/content\\\/microsoftcorp\\\/eX994cQVFZw_video_en-us-0x1080-6439k\",\"type\":\"video\\\/mp4\",\"quality\":\"HQ\"},{\"src\":\"https:\\\/\\\/cdn-dynmedia-1.microsoft.com\\\/is\\\/content\\\/microsoftcorp\\\/eX994cQVFZw_video_en-us-0x720-3266k\",\"type\":\"video\\\/mp4\",\"quality\":\"HD\"},{\"src\":\"https:\\\/\\\/cdn-dynmedia-1.microsoft.com\\\/is\\\/content\\\/microsoftcorp\\\/eX994cQVFZw_video_en-us-0x540-2160k\",\"type\":\"video\\\/mp4\",\"quality\":\"SD\"},{\"src\":\"https:\\\/\\\/cdn-dynmedia-1.microsoft.com\\\/is\\\/content\\\/microsoftcorp\\\/eX994cQVFZw_video_en-us-0x360-958k\",\"type\":\"video\\\/mp4\",\"quality\":\"LO\"}]};\n\n\t\t\tif (currentTheme) {\n\t\t\t\toptions.playButtonTheme = currentTheme;\n\t\t\t}\n\n\t\t\tdocument.addEventListener('DOMContentLoaded', () => {\n\t\t\t\tump(\"ump-69e706c20fffa\", options);\n\t\t\t});\n\t\t<\/script>\n\t<\/div>\n\t<\/figure>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-a89b3969 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-50\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/azure.microsoft.com\/products\/ai-services\/openai-service\/\">Get started with Azure OpenAI Service<\/a><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"new-features-of-o3-mini\">New features of o3-mini<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">As the evolution of OpenAI o1-mini, o3-mini introduces several key features that enhance AI reasoning and customization:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"wp-block-list-item\"><strong>Reasoning effort parameter<\/strong>: Allows users to adjust the model\u2019s cognitive load with low, medium, and high reasoning levels, providing greater control over the response and latency.&nbsp;<\/li>\n\n\n\n<li class=\"wp-block-list-item\"><strong>Structured outputs<\/strong>: The model now supports JSON Schema constraints, making it easier to generate well-defined, structured outputs for automated workflows.<\/li>\n\n\n\n<li class=\"wp-block-list-item\"><strong>Functions and Tools support<\/strong>: Like previous models, o3-mini seamlessly integrates with functions and external tools, making it ideal for AI-powered automation.&nbsp;<\/li>\n\n\n\n<li class=\"wp-block-list-item\"><strong>Developer messages<\/strong>: The \u201crole\u201d: \u201cdeveloper\u201d attribute replaces the system message in previous models, offering more flexible and structured instruction handling.<\/li>\n\n\n\n<li class=\"wp-block-list-item\"><strong>System message compatibility<\/strong>: Azure OpenAI Service maps the legacy system message to developer message to ensure seamless backward compatibility.<\/li>\n\n\n\n<li class=\"wp-block-list-item\"><strong>Continued strength on coding, math, and scientific reasoning<\/strong>: o3-mini further enhances its capabilities in coding, mathematics, and scientific reasoning, ensuring high performance in these critical areas.&nbsp;<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">With these improvements in speed, control, and cost-efficiency, o3-mini is optimized for enterprise AI solutions, enabling businesses to scale their AI applications efficiently while maintaining precision and reliability.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"from-o1-mini-to-o3-mini-what-s-changed\">From o1-mini to o3-mini: What\u2019s changed?&nbsp;<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">o3-mini is the latest reasoning model released, with notable differences compared with the o1 model released last September. While both models share strengths in reasoning, o3-mini adds new capabilities like structured outputs and functions and tools, resulting in a production-ready model with significant improvements in cost efficiencies.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"feature-comparison-o3-mini-versus-o1-mini\">Feature comparison: o3-mini versus o1-mini<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Feature<\/strong><\/td><td><strong>o1-mini<\/strong><\/td><td><strong>o3-mini<\/strong><\/td><\/tr><tr><td>Reasoning Effort Control<\/td><td>No<\/td><td>Yes (low, medium, high)<\/td><\/tr><tr><td>Developer Messages<\/td><td>No<\/td><td>Yes<\/td><\/tr><tr><td>Structured Outputs<\/td><td>No<\/td><td>Yes<\/td><\/tr><tr><td>Functions\/Tools Support<\/td><td>No<\/td><td>Yes<\/td><\/tr><tr><td>Vision Support<\/td><td>No<\/td><td>No<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Watch o3-mini in action, helping with banking fraud, in the demo below: <\/p>\n\n\n\n<figure class=\"wp-block-msx-ump-embed wp-block-msx-ump-embed\" class=\"wp-block-msxcm-ump-embed\">\n\t<div class=\"wp-block-embed__wrapper\">\n\t\t<universal-media-player id=\"ump-69e706c214146\"><\/universal-media-player>\n\t\t<script type=\"module\">\n\t\t\tconst currentTheme =\n\t\t\t\tlocalStorage.getItem('msxcmCurrentTheme') ||\n\t\t\t\t(window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light');\n\n\t\t\t\/\/ Modify player theme based on localStorage value.\n\t\t\tlet options = {\"autoplay\":false,\"hideControls\":null,\"language\":\"en-us\",\"loop\":false,\"partnerName\":\"cloud-blogs\",\"poster\":\"https:\\\/\\\/cdn-dynmedia-1.microsoft.com\\\/is\\\/image\\\/microsoftcorp\\\/K9S53Tahid0_en-us?wid=1280\",\"title\":\"\",\"sources\":[{\"src\":\"https:\\\/\\\/cdn-dynmedia-1.microsoft.com\\\/is\\\/content\\\/microsoftcorp\\\/K9S53Tahid0_en-us-0x1080-6439k\",\"type\":\"video\\\/mp4\",\"quality\":\"HQ\"},{\"src\":\"https:\\\/\\\/cdn-dynmedia-1.microsoft.com\\\/is\\\/content\\\/microsoftcorp\\\/K9S53Tahid0_en-us-0x720-3266k\",\"type\":\"video\\\/mp4\",\"quality\":\"HD\"},{\"src\":\"https:\\\/\\\/cdn-dynmedia-1.microsoft.com\\\/is\\\/content\\\/microsoftcorp\\\/K9S53Tahid0_en-us-0x540-2160k\",\"type\":\"video\\\/mp4\",\"quality\":\"SD\"},{\"src\":\"https:\\\/\\\/cdn-dynmedia-1.microsoft.com\\\/is\\\/content\\\/microsoftcorp\\\/K9S53Tahid0_en-us-0x360-958k\",\"type\":\"video\\\/mp4\",\"quality\":\"LO\"}]};\n\n\t\t\tif (currentTheme) {\n\t\t\t\toptions.playButtonTheme = currentTheme;\n\t\t\t}\n\n\t\t\tdocument.addEventListener('DOMContentLoaded', () => {\n\t\t\t\tump(\"ump-69e706c214146\", options);\n\t\t\t});\n\t\t<\/script>\n\t<\/div>\n\t<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">And watch this o3-mini demo for financial analysis:<\/p>\n\n\n\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=\"o3-mini and RAG for Financial Analysis on the Azure OpenAI Service\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/iiCxcilZWUw?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><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"join-us-on-this-journey\">Join us on this journey<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">We invite you to explore the capabilities of <a href=\"https:\/\/aka.ms\/o3-mini\">o3-mini<\/a> and see how it can transform your AI applications. With <a href=\"https:\/\/azure.microsoft.com\/products\/ai-services\/openai-service\/\">Azure OpenAI Service<\/a>, you get access to the latest AI innovations, enterprise-grade security, and global compliance, and data remains private and secure.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Learn more about OpenAI o3-mini in GitHub Copilot and GitHub Models <a href=\"https:\/\/github.blog\/changelog\/2025-01-31-openai-o3-mini-now-available-in-github-copilot-and-github-models-public-preview\/\" target=\"_blank\" rel=\"noreferrer noopener\">here<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Get started today! Sign up in <a href=\"https:\/\/aka.ms\/o3-mini\">Azure AI Foundry<\/a> to access o3-mini and other advanced AI models.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-a89b3969 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/azure.microsoft.com\/en-us\/products\/ai-foundry\">Build with Azure AI Foundry<\/a><\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>We are pleased to announce that OpenAI\u2019s new o3-mini model is now available in Microsoft Azure OpenAI Service. Building on the foundation of the o1 model, o3-mini delivers a new level of efficiency, cost-effectiveness, and reasoning capabilities.<\/p>\n","protected":false},"author":52,"featured_media":35449,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ms_queue_id":[],"ep_exclude_from_search":false,"_classifai_error":"","_classifai_text_to_speech_error":"","_alt_title":"","footnotes":"","msx_community_cta_settings":[]},"categories":[1454],"tags":[2671,3165],"audience":[3054,3055],"content-type":[1465],"product":[1803,1795,3164],"tech-community":[],"topic":[],"coauthors":[3166],"class_list":["post-38350","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ai-machine-learning","tag-ai","tag-language-models","audience-business-decision-makers","audience-developers","content-type-announcements","product-azure-ai","product-azure-openai","product-microsoft-foundry","review-flag-1680286581-295","review-flag-new-1680286579-546"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Announcing the availability of the o3-mini reasoning model in Microsoft Azure OpenAI Service | Microsoft Azure Blog<\/title>\n<meta name=\"description\" content=\"OpenAI\u2019s new o3-mini model is now generally available in Microsoft Azure OpenAI Service. Learn how it can transform your business with improvements over the o1 model.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/azure.microsoft.com\/en-us\/blog\/announcing-the-availability-of-the-o3-mini-reasoning-model-in-microsoft-azure-openai-service\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Announcing the availability of the o3-mini reasoning model in Microsoft Azure OpenAI Service | Microsoft Azure Blog\" \/>\n<meta property=\"og:description\" content=\"OpenAI\u2019s new o3-mini model is now generally available in Microsoft Azure OpenAI Service. 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