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U.S. nears Fable 5 reinstatement as Anthropic and OpenAI push for formal model-review rules

U.S. nears Fable 5 reinstatement as Anthropic and OpenAI push for formal model-review rules

Mythos 5 — Anthropic's variant without added safety restrictions — is already back for select partners; Fable 5's full reinstatement is days away pending Pentagon and NSA sign-off after Commerce Secretary Lutnick confirmed Anthropic 'worked with the US government to address risks.' Both Anthropic and OpenAI are now lobbying for a legally defined review process instead of ad-hoc holds — a signal that case-by-case government gating of frontier models is becoming a friction point the industry intends to resolve through formal rulemaking.

Source: the-decoder.com ↗

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worked with the US government to address risks

Commerce Secretary Howard Lutnick, in letter to Anthropic

Why this matters

  • → Fable 5 reinstatement signals government-AI industry agreement on safety protocols
  • → Industry pushes for formal rules to replace ad-hoc model restrictions
  • → Competing labs now aligned on standardized review framework
Government gates lifted