mythos-5-1

Sep 29, 2026

• claude-ai
• anthropic
• model-release
• fable-5-1
• mythos-5-1
• claude-fable-5-1
• pricing
• prompt-caching
• data-retention
• enterprise-frontier-safeguards
• safeguards
• preserved-thinking
• watermarking
• trusted-access

Sep 29, 2026

• claude-code
• release-notes
• changelog
• whats-new
• weekly-digest
• fable-5-1
• mythos-5-1
• claude-api-skill
• diff-panel
• skill-doctor
• managed-mcp
• auto-mode
• subagents
• prompt-caching
• gitlab
• security
• computer-use
• desktop
• hooks
• mcp
• permissions
• enterprise
• observability
• readline