{"id":243048,"date":"2026-05-08T10:20:00","date_gmt":"2026-05-08T14:20:00","guid":{"rendered":"https:\/\/news-you-need.com\/index.php\/2026\/05\/08\/openai-rolls-out-new-model-for-cybersecurity-teams-a-month-after-anthropics-mythos-debut\/"},"modified":"2026-05-10T11:50:20","modified_gmt":"2026-05-10T15:50:20","slug":"openai-rolls-out-new-model-for-cybersecurity-teams-a-month-after-anthropics-mythos-debut","status":"publish","type":"post","link":"https:\/\/news-you-need.com\/index.php\/2026\/05\/08\/openai-rolls-out-new-model-for-cybersecurity-teams-a-month-after-anthropics-mythos-debut\/","title":{"rendered":"OpenAI rolls out new model for cybersecurity teams a month after Anthropic&#8217;s Mythos debut"},"content":{"rendered":"<p><a href=\"https:\/\/www.techradar.com\/pro\/security\/openai-rolls-out-new-model-for-cybersecurity-teams-a-month-after-anthropics-mythos-debut\">OpenAI rolls out new model for cybersecurity teams a month after Anthropic&#8217;s Mythos debut<\/a><\/p>\n<p><a href=\"https:\/\/www.techradar.com\/pro\/security\/openai-rolls-out-new-model-for-cybersecurity-teams-a-month-after-anthropics-mythos-debut\">https:\/\/www.techradar.com\/pro\/security\/openai-rolls-out-new-model-for-cybersecurity-teams-a-month-after-anthropics-mythos-debut<\/a><\/p>\n<p>Publish Date: <a href=\"publish_date]\">2026-05-08 10:20:00<\/a><\/p>\n<p>Source Domain: <a href=\"www.techradar.com\">www.techradar.com<\/a><\/p>\n<ul id=\"elk-37371436-2def-4ae7-9aa8-8a83bddecc16\">\n<li><strong>OpenAI introduces GPT\u20115.5\u2011Cyber following uproar around Anthropic Mythos<\/strong><\/li>\n<li><strong>It&#8217;s a modest upgrade focused on permissive cybersecurity tasks like vuln triage and malware analysis<\/strong><\/li>\n<li><strong>Access is limited to vetted teams in the Trusted Access for Cyber (TAC) program, unlike Anthropic\u2019s more restricted Mythos Preview<\/strong><\/li>\n<\/ul>\n<p id=\"elk-89c0b648-03f6-49c6-8191-1d03c5b8b6df\">OpenAI has introduced GPT-5.5-Cyber, an upgraded cybersecurity model looking to take some of the shine off Anthropic&#8217;s Mythos Preview release.<\/p>\n<p>Coming less than a month after the launch of GPT-5.4-Cyber, this is not a major upgrade by any means, and users should not expect many changes, OpenAI explained.<\/p>\n<p id=\"elk-89c0b648-03f6-49c6-8191-1d03c5b8b6df-2\">instead, users should expect a model trained to be more permissive when it comes to cybersecurity tasks, making it easier to use for things like vulnerability identification, triage, patch validation, and malware analysis.<\/p>\n<p><span class=\"inline-flex items-center gap-1.5 text-sm font-article-heading capitalize leading-5 text-white whitespace-nowrap\"><span class=\"jwp-carousel-title-mobile\"\/><span class=\"jwp-carousel-title-desktop\">Latest Videos From<\/span><span class=\"jwp-carousel-brand inline-flex items-center\" aria-hidden=\"true\"><\/span><\/span><img decoding=\"async\" src=\"https:\/\/www.techradar.com\/media\/img\/techradar_logo_v2.svg\" alt=\"\" class=\"max-h-12 w-auto\" aria-hidden=\"true\"\/><br \/>\n        <span class=\"\n            flex\n            after:content-[''] after:flex-1 after:ml-4 after:my-[0.7rem] after:border-t after:border-solid after:border-t-[#ccc]\n            before:content-[''] before:flex-1 before:mr-4 before:my-[0.7rem] before:border-t before:border-solid before:border-t-[#ccc]\n            font-article-heading pb-0 text-[length:var(--article-river-title--font-size,1em)] uppercase sm:text-[length:var(--article-river-title--font-size,0.875em)] font-bold\n        \"><br \/>\n            You may like<br \/>\n        <\/span><\/p>\n<h2 id=\"competing-with-mythos-3\">Competing with Mythos<\/h2>\n<p id=\"elk-5c28a411-fdb4-4a55-ac70-48e3056654bf\">\u201cGPT\u20115.5\u2011Cyber lets a smaller set of partners study advanced workflows where specialized access behavior may matter,\u201d OpenAI said in a blog post.<\/p>\n<p>\u201cThe cyber defense ecosystem is broad, and GPT\u20115.5 and GPT\u20115.5\u2011Cyber play different roles in meeting the needs of organizations and researchers across it, depending on the task, the setting, and the safeguards around how the model is used. For most teams, GPT\u20115.5 with TAC is our strongest broadly useful model for legitimate defensive work, with strong safeguards against misuse.\u201d<\/p>\n<p>As with the previous version, this edition will only be given only to vetted cybersecurity teams. However, unlike its key competitor &#8211; Mythos, which was given to only a handful of companies, OpenAI\u2019s model will be offered to a broader set of users, members of the Trusted Access for Cyber (TAC) program.<\/p>\n<p>Back when it introduced GPT-5.4-Cyber, OpenAI said it was scaling TAC to \u201cthousands of verified individual defenders and hundreds of teams responsible for defending critical software.&#8221;<\/p>\n<p class=\"newsletter-form__strapline\">Sign up to the TechRadar&#8230;<\/p>\n<p><a href=\"https:\/\/www.techradar.com\/pro\/security\/openai-rolls-out-new-model-for-cybersecurity-teams-a-month-after-anthropics-mythos-debut\">Source<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>OpenAI rolls out new model for cybersecurity teams a month after Anthropic&#8217;s Mythos debut https:\/\/www.techradar.com\/pro\/security\/openai-rolls-out-new-model-for-cybersecurity-teams-a-month-after-anthropics-mythos-debut&#8230;<\/p>\n","protected":false},"author":1,"featured_media":243049,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/cdn.mos.cms.futurecdn.net\/DVffQnnibMWmNpx2Wfb5Se-1920-80.jpg","fifu_image_alt":"","footnotes":""},"categories":[15],"tags":[32,57,27],"class_list":["post-243048","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cybersecurity","tag-malware","tag-security","tag-vulnerability"],"_links":{"self":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/243048"}],"collection":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/comments?post=243048"}],"version-history":[{"count":1,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/243048\/revisions"}],"predecessor-version":[{"id":243050,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/243048\/revisions\/243050"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/media\/243049"}],"wp:attachment":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/media?parent=243048"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/categories?post=243048"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/tags?post=243048"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}