{"id":1007856,"date":"2026-05-13T11:31:48","date_gmt":"2026-05-13T06:01:48","guid":{"rendered":"https:\/\/telecomlive.in\/web\/?p=1007856"},"modified":"2026-05-13T11:31:48","modified_gmt":"2026-05-13T06:01:48","slug":"openai-counters-anthropics-mythos-with-daybreak-and-three-gpt-5-5-cyber-models","status":"publish","type":"post","link":"https:\/\/telecomlive.in\/web\/2026\/05\/13\/openai-counters-anthropics-mythos-with-daybreak-and-three-gpt-5-5-cyber-models\/","title":{"rendered":"OpenAI counters Anthropic&#8217;s Mythos with Daybreak and three GPT-5.5 cyber models"},"content":{"rendered":"<p>OpenAI has launched Daybreak, a cybersecurity initiative arriving roughly a month after Anthropic&#8217;s Project Glasswing\u2014setting up a direct contest between the two labs over AI-powered cyber defence. Daybreak pairs OpenAI&#8217;s Codex Security agent with three GPT-5.5 variants to help defenders find vulnerabilities, generate patches and verify fixes inside live repositories.<\/p>\n<p>Access is tiered. Standard GPT-5.5 covers general developer work. GPT-5.5 with Trusted Access for Cyber handles secure code review, vulnerability triage, malware analysis and patch validation. GPT-5.5-Cyber sits at the top, gated behind stronger verification and reserved for authorised red teaming and penetration testing.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>OpenAI has launched Daybreak, a cybersecurity initiative arriving roughly a month after Anthropic&#8217;s Project Glasswing\u2014setting up a direct contest between the two labs over AI-powered cyber defence. Daybreak pairs OpenAI&#8217;s Codex Security agent with three GPT-5.5 variants to help defenders find vulnerabilities, generate patches and verify fixes inside live repositories. Access is tiered. Standard GPT-5.5 covers general developer work. GPT-5.5 with Trusted Access for Cyber handles secure code review, vulnerability triage, malware analysis and patch validation. GPT-5.5-Cyber sits at the top, gated behind stronger verification and reserved for authorised red teaming and penetration testing.<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[87,4,11],"tags":[],"class_list":["post-1007856","post","type-post","status-publish","format-standard","hentry","category-it-2-the-times-of-india","category-newspapers","category-the-times-of-india"],"acf":[],"_links":{"self":[{"href":"https:\/\/telecomlive.in\/web\/wp-json\/wp\/v2\/posts\/1007856","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/telecomlive.in\/web\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/telecomlive.in\/web\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/telecomlive.in\/web\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/telecomlive.in\/web\/wp-json\/wp\/v2\/comments?post=1007856"}],"version-history":[{"count":1,"href":"https:\/\/telecomlive.in\/web\/wp-json\/wp\/v2\/posts\/1007856\/revisions"}],"predecessor-version":[{"id":1007857,"href":"https:\/\/telecomlive.in\/web\/wp-json\/wp\/v2\/posts\/1007856\/revisions\/1007857"}],"wp:attachment":[{"href":"https:\/\/telecomlive.in\/web\/wp-json\/wp\/v2\/media?parent=1007856"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/telecomlive.in\/web\/wp-json\/wp\/v2\/categories?post=1007856"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/telecomlive.in\/web\/wp-json\/wp\/v2\/tags?post=1007856"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}