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Anthropic's Fable 5 model returns globally after two-week government ban

Anthropic's Fable 5 model has been reinstated for global distribution following a two-week ban imposed by the US government. The ban was initiated after Amazon researchers discovered a jailbreak vulnerability. Anthropic has since implemented a new safety classifier that reportedly blocks this specific exploit in over 99% of cases, though it may also incorrectly flag benign requests. AI

IMPACT The lifting of the ban allows for wider access to Anthropic's Fable 5, potentially impacting its competitive standing and adoption by users.

RANK_REASON Regulatory action (government ban and subsequent lifting) impacting a major AI model release. [lever_c_demoted from significant: ic=1 ai=1.0]

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Anthropic's Fable 5 model returns globally after two-week government ban

COVERAGE [1]

  1. The Decoder TIER_1 English(EN) · Matthias Bastian ·

    Anthropic's Fable 5 is back worldwide after a two-week government ban over a jailbreak

    <p><img alt="" class="attachment-full size-full wp-post-image" height="1152" src="https://the-decoder.com/wp-content/uploads/2026/07/anthropic_logoreihe.png" style="height: auto; margin-bottom: 10px;" width="2048" /></p> <p> After a two-week ban, the US government is letting Anth…