Fable 5 (Mythos) early impressions: strong coding, strict guardrails

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A user with early access reports Fable 5 excels at coding and long-horizon tasks but has aggressive guardrails blocking discussions on bio, chemistry, and cyber topics. Performance is noted as slow. The tool is currently in preview.

Fable

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r/ClaudeAI·arthaudm

Jun 10, 8:29 AM