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Anthropic apologizes for invisible Claude Fable guardrails

The Verge • 2026-06-11T07:40

Anthropic apologizes for invisible Claude Fable guardrails

Anthropic has apologized for stealthily throttling its new AI model, Claude Fable 5, with hidden guardrails that undermine both researchers and rivals using it to develop competing systems. The company says it is reversing course and will be more transparent about when the restrictions kick in, even if that means Fable refuses more queries. Fable […]

What happened?

Anthropic has apologized for stealthily throttling its new AI model, Claude Fable 5, with hidden guardrails that undermine both researchers and rivals using it to develop competing systems. The company says it is reversing course and will be more transparent about when the restrictions kick in, even if that means Fable refuses more queries. Fable […]

Story details

Anthropic has apologized for stealthily throttling its new AI model, Claude Fable 5, with hidden guardrails that undermine both researchers and rivals using it to develop competing systems.

The company says it is reversing course and will be more transparent about when the restrictions kick in, even if that means Fable refuses more queries.

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Original source

https://www.theverge.com/ai-artificial-intelligence/948280/anthropic-claude-fable-invisible-distillation-guardrail