Redeploying Fable 5Anthropic News / Jun 30, 2026Fable 5 を7/1再展開改良分類器で99%ブロックMythos 5 は一部復旧済みfable5mythos5safety-classifierjailbreakglasswingexport-controlsops
Statement on the US government directive to suspend access to Fable 5 and Mythos 5Anthropic News / Jun 12, 2026Fable 5/Mythos 5 即時停止他モデルは影響なし追加情報は24時間以内公開anthropicfable5mythos5export-controlmodel-securityincident-response
Claude Fable 5 and Claude Mythos 5Anthropic News / Jun 9, 2026State-of-the-art capability across coding, vision, and long-context tasksConservative safeguards route risky queries to Claude Opus 4.8 (<5% sessions)Mythos 5: lifted safeguards for vetted cyberdefense and accelerated protein designclaudefable5mythos5safeguardscybersecuritylong-contextlife-sciences