Redeploying Fable 5
Anthropic News / Jun 30, 2026
- Fable 5 redeployed globally July 1
- New classifier blocks reported jailbreak >99% of cases
- Blocked requests fallback to Opus 4.8; expect more false positives
Matched posts: 4
Claude Fable 5 and Claude Mythos 5
Anthropic News / Jun 9, 2026
- 最先端の総合性能
- 一部トピックでOpus 4.8へリダイレクト
- Mythos 5は限定公開
A shared playbook for trustworthy third party evaluations
OpenAI News / May 29, 2026
- ハーネスを明示
- 主張と証拠を一致
- 脆弱性を予算で検証
Widening the conversation on frontier AI
Anthropic News / May 19, 2026
- Dialogues with wisdom traditions
- Callable ethical reminder reduced misalignment
- Plans to broaden stakeholder engagement
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