Dev.to
6/16/2026
Claude Fable 5 and Mythos 5 disabled due to US export-control order
Original: Claude Fable 5 is currently unavailable , here's what actually happened
Short summary
Claude Fable 5 and Mythos 5 were disabled June 12 after a US export-control order from Commerce Secretary Lutnick, requiring Anthropic to block foreign nationals. Since they cannot verify user location in real-time, the models were shut down globally. Anthropic disputes the triggering 'jailbreak' (code security review) warrants shutdown, noting GPT-5.5 has similar capabilities. Developers should migrate to Claude Opus 4.8 or use cheaper alternatives.
- •Claude Fable 5 and Mythos 5 disabled June 12 due to US export-control order
- •Anthropic blocked all access globally because they cannot verify user nationality in real-time
- •Recommended migration: Claude Opus 4.8 (or cheaper Sonnet 4.6/Haiku 4.5 alternatives)
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