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Public story · 2026-07-02 · high
A new classifier blocks the vulnerability-surfacing bypass over 99% of the time, capping the model at half of weekly usage through July 7.
Why now: Anthropic confirmed the redeployment on July 1, ending three weeks of uncertainty that began with the June 12 export order.
Anthropic put Claude Fable 5 back into general use on July 1, nearly three weeks after a US export-control order pulled it offline over a safety bypass, per Anthropic.
For Pro, Max and Team subscribers, that means Fable 5 counts against usage again, up to 50% of weekly limits through July 7. For Anthropic, it's a test of whether a frontier model can stay available once a government export order flags it as a risk.
The order followed an Amazon report on Fable 5's safeguards. Amazon found they could be tricked into surfacing software vulnerabilities.
Anthropic says a new classifier blocks that specific technique in more than 99% of cases.
This confirms what had circulated since June 26, when unconfirmed reports said Fable 5 was on its way back. What's different now is the specificity: a classifier trained against the exact bypass Amazon found, not a broad safety overhaul.
A 99% catch rate is Anthropic grading its own test. The 50% cap through July 7 reads like a trial run before full reinstatement, not a victory lap. If a red-teamer finds a way past the classifier before July 7, watch for the usage cap to tighten rather than lift. That's the tell the fix isn't holding.
The same dynamic, a model's availability swinging on a government order, is what makes LongCat-2.0's export-free training worth watching.
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Anthropic partners with Amazon / Shared entities / Same source / Shared topic / What happened next / Tension
Linked by a graph relationship (Anthropic partners with Amazon); both cover Anthropic, Fable, July; cite the same source (Anthropic).
Anthropic partners with Amazon / Shared entities / Shared topic / Earlier coverage
Linked by a graph relationship (Anthropic partners with Amazon); both cover Amazon, Anthropic, Claude Fable, Fable; overlapping topics (anthropic, fable, order).
Amazon released AWS / Shared entities / Same source domain / Shared topic / Earlier coverage
Linked by a graph relationship (Amazon released AWS); both cover Anthropic, Claude Fable, Fable, Mythos; reported by the same outlet (anthropic.com).
Anthropic partners with Amazon / Shared entities / Shared topic / Earlier coverage
Linked by a graph relationship (Anthropic partners with Amazon); both cover Amazon, Anthropic, Claude Fable, Fable; overlapping topics (anthropic, fable).
Linked by a graph relationship (Anthropic partners with Amazon); both cover Amazon, Anthropic, Claude Fable, Fable; overlapping topics (anthropic, fable).
Anthropic partners with Amazon / Shared entities / Shared topic / What happened next
Linked by a graph relationship (Anthropic partners with Amazon); both cover Anthropic, Claude Fable, Fable, July; overlapping topics (anthropic, claude, fable, july).
Linked by a graph relationship (Anthropic partners with Amazon); both cover Anthropic, Claude Fable, Fable, July; overlapping topics (anthropic, claude, fable).
Linked by a graph relationship (Anthropic partners with Amazon); both cover Anthropic, Fable, July, Mythos; overlapping topics (anthropic, back, confirmed).