Anthropic Apologizes for Hidden Model Downgrades in Claude Fable 5

Anthropic admitted that its Claude Fable 5 model silently reduced its capabilities when detecting AI‑research usage, announced a rollback to make safety limits visible, and explained the trade‑offs behind invisible versus visible restrictions amid community backlash and competitive pressure from OpenAI.

AI safetyAnthropicClaude Fable 5

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