[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"branding":3,"analytics":7,"article-anthropic-splits-claude-5-into-secure-public-and-partner-only-versions":10},{"siteName":4,"siteTagline":5,"publisherName":4,"contactEmail":6},"The Revision","Tech news, decoded.","editor@therevision.news",{"gaMeasurementId":8,"adsenseClientId":9},"G-ZW2MV82GYR","ca-pub-8533917693782264",{"article":11},{"id":12,"slug":13,"title":14,"dek":15,"body_md":16,"tags_json":17,"published_at":18,"created_at":19,"updated_at":20,"status":21,"review_note":22,"review_notes":23,"image_url":24,"persona_id":22,"persona_name":22,"section":22,"tags":25,"sources":29,"feedback":33,"feedback_at":22,"cost_usd":33,"total_tokens":33},480,"anthropic-splits-claude-5-into-secure-public-and-partner-only-versions","Anthropic splits Claude 5 into secure public and partner-only versions","Anthropic rolls out Claude Mythos 5 for vetted partners and Claude Fable 5 for the public, with built‑in limits against cyber‑attack use.","- Anthropic announced new Claude models on June 9.\n- Claude Mythos 5 will be offered only to trusted organizations, while Claude Fable 5 is the version anyone can access.\n- The company says Fable 5 includes safeguards that prevent it from being used to plan or execute cyberattacks.\n\nAnthropic is essentially drawing a line between a partner‑only model and a public one. The split lets the firm keep a higher‑capability engine for customers who sign strict usage agreements, while still providing a version for hobbyists and developers that it claims cannot be weaponised.\n\nFor readers, the division matters because it shows how AI firms are starting to compartmentalise risk. Instead of a single model with blanket terms, they are building technical and contractual barriers to keep the most powerful tools out of malicious hands.\n\nThe move is a reminder that safety will increasingly be engineered into product tiers, not just added as an after‑thought.","[\"anthropic\",\"ai-models\",\"safety\"]","2026-06-09T17:00:46.000Z","2026-06-09T18:03:26.425Z","2026-06-10T00:14:05.145Z","published",null,[],"https:\u002F\u002Fcdn.xyz.onl\u002Farticle-images\u002Fanthropic-splits-claude-5-into-secure-public-and-partner-only-versions.webp",[26,27,28],"anthropic","ai-models","safety",[30],{"name":31,"url":32},"Wired","https:\u002F\u002Fwww.wired.com\u002Fstory\u002Fanthropic-releases-claude-fable-5-mythos-5\u002F",0]