{"id":653218,"date":"2026-06-10T09:18:09","date_gmt":"2026-06-10T07:18:09","guid":{"rendered":"https:\/\/mybroadband.co.za\/news\/?p=653218"},"modified":"2026-06-10T10:37:50","modified_gmt":"2026-06-10T08:37:50","slug":"anthropic-releases-powerful-ai-tool-to-the-public","status":"publish","type":"post","link":"https:\/\/mybroadband.co.za\/news\/ai\/653218-anthropic-releases-powerful-ai-tool-to-the-public.html","title":{"rendered":"Anthropic releases powerful AI tool to the public"},"content":{"rendered":"\n

Anthropic PBC<\/a> is widely releasing a version of Mythos that will be blocked from carrying out cybersecurity tasks, months after warning that the powerful artificial intelligence model could spot and exploit vulnerabilities<\/a> in critical software. <\/p>\n\n\n\n

The new model, called Fable 5, is set to be rolled out on Tuesday with guardrails that prevent it from responding to certain types of queries, including those related to cybersecurity and biology.\u00a0<\/p>\n\n\n\n

In those cases, Anthropic said\u00a0its Claude chatbot will route responses through a different model called Opus 4.8.\u00a0

Anthropic is also releasing the same model, without some of the safeguards, as a new version of Mythos\u00a0called Mythos 5. <\/p>\n\n\n\n

It will be available to the groups that can use\u00a0the cyber-capable model through an initiative called Project Glasswing. <\/p>\n\n\n\n

Last week,\u00a0Anthropic added 150 additional organisations\u00a0to the list\u00a0of firms with access to Mythos, bringing the total to about 200.\u00a0

Mythos has emerged as a focal point for the San Francisco-based company in recent months as it pushes toward an initial public offering. <\/p>\n\n\n\n

The company made the unusual decision to restrict access to the model to select partners, citing concerns that it can identify\u00a0and exploit\u00a0vulnerabilities \u201cin every major operating system and every major web browser when directed by a user to do so.\u201d <\/p>\n\n\n\n

Like its rivals, however, Anthropic is also working to\u00a0develop models that are more capable at a range of lucrative tasks, including coding, finance and cybersecurity.\u00a0<\/p>\n\n\n\n

\u201cWe wanted to make sure for non-cyber use cases, we really prioritized safely releasing Fable as soon as possible,\u201d said\u00a0Dianne Penn, head of project management for Anthropic\u2019s research and labs.\u00a0<\/p>\n\n\n\n

\u201cThat\u2019s why we\u2019re bringing this part of the Fable piece first while we continue to work on the general cyber use cases.\u201d

Fable 5 is designed to be better at coding and other professional tasks, particularly solving tricky problems over a longer period of time than prior models, the company said.\u00a0

In a test of the new software, payment processor Stripe\u00a0was able to complete a lengthy software-engineering task in a day that would have taken a team two months to do manually, Anthropic said.<\/p>\n\n\n\n

The company also said a hypothesis that Mythos generated regarding a new mechanism for an E. coli protein was confirmed in a\u00a0research paper<\/a>\u00a0by a lab that was studying the same issue.

To test whether Fable 5\u2019s\u00a0guardrails held up, Anthropic\u00a0said it ran an external\u00a0bug bounty program to find ways to jailbreak the model, or get around its safeguards. <\/p>\n\n\n\n

In over 1,000 hours of testing, red teamers didn\u2019t find any universal jailbreaks.\u00a0<\/p>\n\n\n\n

Penn said Anthropic will continue to expand the number of groups that have access to the cyber-capable version of Mythos through Project Glasswing and take \u201cother approaches to be able to have trusted partners access for cybersecurity.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"

Anthropic is widely releasing a version of Mythos that will be blocked from carrying out cybersecurity tasks, months after warning that the powerful artificial intelligence model could spot and exploit vulnerabilities in critical software.\u00a0<\/p>\n","protected":false},"author":341034,"featured_media":647604,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[92837],"tags":[88872,84095,97858,13631,15227,105811,87073,105812,104674,105810,30358,104675,44404],"class_list":["post-653218","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ai","tag-ai-chatbots","tag-anthropic","tag-claude","tag-coding","tag-cybersecurity","tag-dianne-penn","tag-fable","tag-fable-5","tag-mythos","tag-mythos-5","tag-programming","tag-project-glasswing","tag-stripe"],"_links":{"self":[{"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/posts\/653218"}],"collection":[{"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/users\/341034"}],"replies":[{"embeddable":true,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/comments?post=653218"}],"version-history":[{"count":2,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/posts\/653218\/revisions"}],"predecessor-version":[{"id":653226,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/posts\/653218\/revisions\/653226"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/media\/647604"}],"wp:attachment":[{"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/media?parent=653218"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/categories?post=653218"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/tags?post=653218"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}