What did the US government order Anthropic to do?

On 12 June 2026 the US government issued an export control directive suspending all access to Anthropic’s Claude Fable 5 and Claude Mythos 5 by any foreign national, whether inside or outside the United States. Anthropic is complying by disabling both models for all customers worldwide, because it cannot separate foreign nationals from its user base in real time. Access to Anthropic’s other models, including Claude Opus 4.8 and the earlier Mythos Preview, is not named in the directive and continues. Commerce Secretary Howard Lutnick cited a claimed jailbreak of the model as the basis for the action.

How does this affect Australian organisations?

Australian users lose access to Fable 5 and Mythos 5, because Australian nationals fall within the directive’s foreign-national scope, which carries no Five Eyes exception. The Australian critical-infrastructure operators that joined Project Glasswing in early June are caught: the Mythos 5 upgrade they were offered on 9 June is now blocked. On Anthropic’s stated carve-out, those partners keep the earlier Mythos Preview tooling they already use, and all other Anthropic models remain available to Australian customers.

Does this stop Anthropic’s data centre plans in Australia?

No. The directive suspends access to two specific models and does not touch Anthropic’s Australian compute and infrastructure activity. The company’s National AI Plan memorandum of understanding, its Fair Work Commission contract, its Sydney data centre operations hiring and its reported 300 to 500MW local capacity selection process all run on infrastructure and deployment rather than on access to Fable 5 or Mythos 5. Those tracks are unaffected by the 12 June order.

US bars Australia from Anthropic Fable 5, Mythos 5

At a glance

Anthropic launched Claude Fable 5 on 9 June 2026, a Mythos-class model released for general use with safeguards, alongside Claude Mythos 5, the same model with cyber safeguards lifted for Project Glasswing partners.
On 12 June 2026 US Eastern time, about 7:21am AEST on 13 June, the US government issued an export control directive suspending all access to both models by any foreign national, inside or outside the United States, forcing Anthropic to disable Fable 5 and Mythos 5 for every customer worldwide.
Access to Anthropic’s other models, including the earlier Mythos Preview that current Glasswing partners run, is not named in the directive and continues.
The order lands on the Australian critical-infrastructure cohort that we reported joining Glasswing on 3 June: the Mythos 5 upgrade those operators were offered on 9 June is now blocked.
Commerce Secretary Howard Lutnick cited a claimed jailbreak of the model; Anthropic says the technique is narrow, surfaces only minor known flaws, and is matched by publicly available models including OpenAI’s GPT-5.5.

What Anthropic shipped on 9 June, and what Washington undid three days later

Anthropic released Claude Fable 5 and Claude Mythos 5 on 9 June 2026. Fable 5 is a Mythos-class model, the tier Anthropic places above its Opus class, made available for general use with a set of safety classifiers that divert sensitive cybersecurity, biology, chemistry and distillation queries to Claude Opus 4.8. Mythos 5 is the same underlying model with the cyber safeguards lifted, restricted to Project Glasswing cyberdefence partners and, in time, a trusted-access program. Both were priced at US$10 per million input tokens and US$50 per million output tokens, less than half the cost of the earlier Mythos Preview.

On 12 June 2026 at 5:21pm US Eastern time, about 7:21am AEST on 13 June, the US government issued an export control directive, citing national security authorities, to suspend all access to Fable 5 and Mythos 5 by any foreign national, whether inside or outside the United States, including Anthropic’s own foreign-national staff. Because Anthropic cannot separate foreign nationals from its user base in real time, the practical effect is a hard global shutoff of both models. The company confirmed it is complying and disabling both models for all users, while stating that access to all other Anthropic models is unaffected.

The trigger, per CNBC and Axios, was a claim by another company that it had jailbroken the model. Commerce Secretary Howard Lutnick wrote to chief executive Dario Amodei placing the two models under export controls. Anthropic’s account is that the demonstrated technique is a narrow, non-universal jailbreak, essentially asking the model to read a codebase and fix flaws, that it surfaced only a few previously known minor vulnerabilities, and that the capability is widely available from other frontier models including OpenAI’s GPT-5.5. The company says it disagrees with the recall but is complying with the legal directive.

The directive lands on the cohort we reported ten days ago

Our 3 June report documented Australian organisations entering Project Glasswing for the first time, inside an expansion to roughly 150 critical-infrastructure operators across more than 15 countries. The sectors added in that wave, power, water, healthcare and communications, map onto the asset classes Australia regulates under the Security of Critical Infrastructure Act 2018, and the highest-criticality Systems of National Significance operators were reported to be near the front of the local queue.

Those are the organisations the 12 June directive now reaches. As foreign nationals, every Australian Glasswing participant sits inside the scope of an order that blocks access to Fable 5 and Mythos 5. The Financial Times had reported Glasswing access extending across the Five Eyes alliance, which pairs Australia with the United States, United Kingdom, Canada and New Zealand. The directive carves out no allied exception. Partners brought in on a national-security rationale are caught by a national-security block.

The directive names Fable 5 and Mythos 5. The model currently in the hands of Glasswing partners is the earlier Mythos Preview, which Anthropic says falls under the other models that remain available. On 9 June, Anthropic offered Glasswing partners an upgrade from Mythos Preview to Mythos 5. That upgrade path is what the directive freezes. Australian operators are not, on Anthropic’s stated carve-out, losing the Mythos Preview tooling they already run; they are losing the cheaper, stronger successor they were three days into being able to adopt.

The launch closed one open question from our last report, then reopened it

Our June coverage listed the public release of Mythos as the item to watch, on the logic that general availability would change the calculus for every Australian operator without restricted Glasswing access. The 9 June launch answered it. Fable 5 put Mythos-class capability on the standard Claude API and subscription plans, available everywhere, which meant any Australian operator, not only the Glasswing cohort, could reach the capability through Fable.

That window stayed open for three days. The 12 June directive removes Fable 5 from Australian hands along with Mythos 5, so the general-access route that briefly existed is closed for now. Anthropic says it believes the action is a misunderstanding and is working to restore access. Until it does, the position for Australian buyers reverts to Opus 4.8 and the rest of the standard lineup, which remain fully available.

Date	Event	Effect for Australian users
7 April 2026	Project Glasswing launches with ~50 US firms on Mythos Preview	No Australian access
2–3 June 2026	Glasswing expands to ~150 orgs across 15-plus countries, Australia included	Australian critical-infrastructure operators gain Mythos Preview access
9 June 2026	Fable 5 and Mythos 5 launch; Glasswing partners offered Mythos 5 upgrade	Fable 5 available to all Australian users; Mythos 5 upgrade offered to local Glasswing cohort
12 June 2026	US export control directive suspends all foreign-national access to Fable 5 and Mythos 5	Both models disabled for Australian users; Mythos Preview and other models continue

Source: Certified Strategic Editorial, Anthropic disclosures and US news reporting, June 2026.

What to watch

The restoration timeline. Anthropic says it is working to restore access and expects to share more detail. A reinstatement, a narrowing of the order, or a formal export-control process would each set a different precedent for foreign access to US frontier models.

Whether an allied carve-out emerges. The directive blocks all foreign nationals with no Five Eyes exception. Any subsequent licensing path for allied partners would matter directly to the Australian Glasswing cohort and to agencies that had sought Mythos briefings.

The effect on the compute track. Anthropic’s reported 300 to 500MW Australian capacity process and its Sydney build-out are not touched by this directive. Confirmation that they proceed on schedule would show the infrastructure relationship is insulated from the model-access dispute.

Australian agency posture. We will watch whether the Cyber and Infrastructure Security Centre, Treasury, the Reserve Bank or Systems of National Significance operators signal any change in their approach to US frontier models.