Claude just released a Mythos-level model, but you only have 10 days to try it
www.makeuseof.com/try-claude-mythos-level-model-for-limited-time/
Anthropic has released Fable 5 — a Mythos-level Claude model available for a limited time.
Tuned for cybersecurity and biology and features robust safeguards to drop it to cheaper models if triggered.
Subscribers can use Fable 5 until June 22; expect high cost and token burn.
Claude Fable 5 and Claude Mythos 5 \ Anthropic
www.anthropic.com/news/claude-fable-5-mythos-5
Claude 5 Fable: lista de novedades de la nueva versión del modelo de Inteligencia Artificial de Anthropic
www.xataka.com/basics/claude-5-fable-lista-novedades-nueva-version-modelo-inteligencia-artificial-anthropic
Claude Fable 5 zet de lat hoger voor autonome AI met scherpere veiligheidsgrenzen – artificial-intelligence.be
Claude Fable 5 zet de lat hoger voor autonome AI met scherpere veiligheidsgrenzen
Claude Fable 5 es el modelo de IA público más potente de la historia. También el más caro, exclusivo y frustrante
www.xataka.com/robotica-e-ia/claude-fable-5-modelo-ia-publico-potente-historia-tambien-caro-exclusivo-frustrante
Anthropic livre Claude Fable 5, une version bridée de Mythos – Le Monde Informatique
www.lemondeinformatique.fr/actualites/lire-anthropic-livre-claude-fable-5-une-version-bridee-de-mythos-100406.html
Cuando los frenos saltan demasiado: las quejas por los guardrails de Claude Fable y lo que anticipan
wwwhatsnew.com/2026/06/11/cuando-los-frenos-saltan-demasiado-las-quejas-por-los-guardrails-de-claude-fable-y-lo-que-anticipan/
Available today: Anthropic Claude Fable 5 in Microsoft 365 Copilot | Microsoft Community Hub
techcommunity.microsoft.com/blog/microsoft365copilotblog/available-today-anthropic-claude-fable-5-in-microsoft-365-copilot/4526832
Claude Fable 5: la apuesta de Anthropic por modelos más capaces… con frenos incorporados
wwwhatsnew.com/2026/06/10/claude-fable-5-la-apuesta-de-anthropic-por-modelos-mas-capaces-con-frenos-incorporados/
Anthropic Claude Fable 5 refuses innocuous prompts
www.theregister.com/ai-and-ml/2026/06/10/anthropic-claude-fable-5-refuses-innocuous-prompts/5253754