{"id":516882,"date":"2026-06-12T07:17:56","date_gmt":"2026-06-12T10:17:56","guid":{"rendered":"https:\/\/portaltela.pt\/noticias\/2026\/06\/12\/anthropic-lanca-claude-fable-5-baseado-no-mythos-considerado-perigoso\/"},"modified":"2026-06-12T07:17:56","modified_gmt":"2026-06-12T10:17:56","slug":"anthropic-lanca-claude-fable-5-baseado-no-mythos-considerado-perigoso","status":"publish","type":"post","link":"https:\/\/portaltela.pt\/tecnologia\/2026\/06\/12\/anthropic-lanca-claude-fable-5-baseado-no-mythos-considerado-perigoso\/","title":{"rendered":"Anthropic lan\u00e7a Claude Fable 5 baseado no Mythos, considerado perigoso"},"content":{"rendered":"<p>A Anthropic, empresa norte-americana de IA, lan\u00e7ou no in\u00edcio desta semana o Claude Fable 5, novo modelo da classe Mythos. A empresa descreve-o como o mais avan\u00e7ado dispon\u00edvel ao p\u00fablico at\u00e9 agora. O lan\u00e7amento inclui novas restri\u00e7\u00f5es de seguran\u00e7a, justificadas pela pr\u00f3pria organiza\u00e7\u00e3o.<\/p>\n<p>Segundo a Anthropic, as limita\u00e7\u00f5es passam pela \u00e1rea da ciberseguran\u00e7a, al\u00e9m de, pela primeira vez, abranger qu\u00edmica e biologia. A medida visa impedir usos indevidos do sistema, segundo o fabricante, que n\u00e3o revelou detalhes t\u00e9cnicos.<\/p>\n<h3>Medidas de seguran\u00e7a e cr\u00edticas<\/h3>\n<p>Especialistas questionam o equil\u00edbrio entre accessibilidade p\u00fablica e salvaguardas. A empresa afirma que as restri\u00e7\u00f5es s\u00e3o proporcionais ao risco apresentado pelos conte\u00fados sens\u00edveis. O Claude Fable 5 est\u00e1 dispon\u00edvel nos EUA, onde a Anthropic mant\u00e9m opera\u00e7\u00f5es e avalia\u00e7\u00f5es regulat\u00f3rias.<\/p>\n<p>A imprensa especializada acompanha o desfecho do debate sobre o modelo Mythos. Observa-se que a nova edi\u00e7\u00e3o intensifica a discuss\u00e3o sobre o que pode ou n\u00e3o ser compartilhado por IA. A Anthropic n\u00e3o forneceu datas de expans\u00e3o global.<\/p>\n","protected":false},"excerpt":{"rendered":"<ul>\n<li>A Anthropic lan\u00e7ou o Claude Fable 5, baseado no Mythos, considerado o modelo mais avan\u00e7ado dispon\u00edvel ao p\u00fablico at\u00e9 ao momento.<\/li>\n<li>O lan\u00e7amento insere-se numa gera\u00e7\u00e3o de restri\u00e7\u00f5es de seguran\u00e7a mais r\u00edgidas pela primeira vez a \u00e1reas cr\u00edticas.<\/li>\n<li>A empresa descreve o Claude Fable 5 como parte da classe Mythos, com novas limita\u00e7\u00f5es para uso p\u00fablico.<\/li>\n<li>As novas restri\u00e7\u00f5es abrangem ciberseguran\u00e7a e, pela primeira vez, qu\u00edmica e biologia, gerando pol\u00e9mica entre especialistas.<\/li>\n<li>A Anthropic \u00e9 a segunda maior startup de IA.<\/li>\n<\/ul>\n","protected":false},"author":2,"featured_media":516883,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"summary":"Anthropic lan\u00e7a Claude Fable 5, baseado em Mythos, com restri\u00e7\u00f5es de seguran\u00e7a mais r\u00edgidas, gerando pol\u00e9mica entre especialistas, sobretudo em ciberseguran\u00e7a, qu\u00edmica e biologia","footnotes":""},"categories":[6716],"tags":[8029,8663,7986,8000,8695,7989],"class_list":["post-516882","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tecnologia","tag-_ciencia","tag-_cyberseguranca","tag-_estados-unidos","tag-_inteligencia-artificial","tag-_seguranca-digital","tag-_tecnologia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Anthropic lan\u00e7a Claude Fable 5 baseado no Mythos, considerado perigoso - Portal Tela Portugal<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Anthropic lan\u00e7a Claude Fable 5 baseado no Mythos, considerado perigoso - Portal Tela Portugal\" \/>\n<meta property=\"og:description\" content=\"A Anthropic lan\u00e7ou o Claude Fable 5, baseado no Mythos, considerado o modelo mais avan\u00e7ado dispon\u00edvel ao p\u00fablico at\u00e9 ao momento. O lan\u00e7amento insere-se numa gera\u00e7\u00e3o de restri\u00e7\u00f5es de seguran\u00e7a mais r\u00edgidas pela primeira vez a \u00e1reas cr\u00edticas. A empresa descreve o Claude Fable 5 como parte da classe Mythos, com novas limita\u00e7\u00f5es para uso p\u00fablico. As novas restri\u00e7\u00f5es abrangem ciberseguran\u00e7a e, pela primeira vez, qu\u00edmica e biologia, gerando pol\u00e9mica entre especialistas. 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