Claude Fable 5 available in Claude Code | CodexMaster

Friday, July 17, 2026

Agent Index Feed Vibe Methodology The Honest Stack

June 9, 2026releaseClaude Code

Claude Fable 5 available in Claude Code

Anthropic's Mythos-class frontier model becomes selectable via /model fable.

Primary sourcerelease_radarcode.claude.com ↗

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