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Claude Fable 5 Safety Restrictions Explained: What Gets Blocked and Why

Claude Fable 5 blocks queries in three high-friction categories: biology, cybersecurity, and LLM development. The restrictions are hardcoded and cannot be overridden by system prompts, drawing backlash from developers and researchers. Anthropic's biosecurity guardrails are the strictest, refusing even legitimate research queries.

Jun 13, 12:00 AM