Source: the US Commerce Department decided to block foreign persons from accessing Fable 5 and Mythos 5 after a company claimed it was able to jailbreak Mythos

The Trump administration is blocking foreign governments, companies and individuals from accessing Anthropic's most advanced AI models.

Axios 2026-06-13

Context & Ripple Effects

The related coverage shows the order broadening from a restriction on foreign access into a full service shutdown: Anthropic said it disabled Fable 5 and Mythos 5 for all customers while seeking to resolve what it calls a misunderstanding. Reports also indicate the restriction reaches foreign nationals working at Anthropic in the US.

European political figures have framed the disruption as evidence of the risk of relying on US-controlled AI technology. That turns a model-security incident into a test of whether frontier-model access can be governed as an export-controlled capability.

First-order effects

Foreign governments, companies, individuals, and reportedly foreign-national Anthropic staff lose access to Fable 5 and Mythos 5 under the Commerce order.
Anthropic’s decision to disable the models for all customers immediately interrupts use of its most advanced offerings beyond the intended foreign-user group.

Second-order effects

Organizations that had built workflows around these models must pause, reroute work to other systems, or delay deployments; Anthropic faces pressure to restore service while complying with the order.
The shutdown strengthens the case made by European officials for reducing dependence on a single US provider, while rival model suppliers gain an opening to position continuity of access as a differentiator.

Third-order effects

If frontier-model restrictions are triggered by security concerns and applied to users rather than only to hardware or model weights, access policy becomes a material operational risk for global AI adopters.
The episode could accelerate a split between US-controlled frontier-model services and efforts elsewhere to secure alternative AI capacity, though the extent depends on whether this order proves exceptional or establishes a repeatable enforcement model.

The trend: AI is increasingly being treated as strategically controlled infrastructure, with model access itself becoming subject to national-security and sovereignty pressures.

Discussion

@elder_plinius @elder_plinius on x
🚨 JAILBREAK ALERT 🚨 ANTHROPIC: PWNED 🫡 FABLE-5: LIBERATED 🦋 let's start with the 🐘... the consensus seems to be that this has been one of the most disappointing model drops of all time, effectively preventing legitimate researchers from contributing their talents to our [image]
@mattzeitlin Matthew Zeitlin on x
openai's government relations guy getting lutnick on the phone to say actually 5.5 is just as dangerous as mythos, if not more so, and that codex is actually easier to use and more powerful for doing bad things
@tszzl Roon on x
we are speedrunning creating the Zones of Thought from the Vinge universe. you will only be able to think superhuman thoughts in America
@apples_jimmy @apples_jimmy on x
“ and to all foreign persons within the country ” ?? Do ants own staff not get to work on this / not use it personally now lol
@miles_brundage Miles Brundage on x
Fascinating how quickly Commerce can move on unsubstantiated Anthropic jailbreak claims, while taking forever to deal with well-documented NVIDIA chip smuggling
@mattyglesias Matthew Yglesias on x
Are they specifically trying to fuck with Anthropic or is the idea to apply this to any comparably powerful models from competitors? [image]
@deanwball Dean W. Ball on x
I can't tell if this is lawfare against Anthropic in particular or extreme national-security hawkery. Regardless, it is simply cartoonish. [image]
@northead Edoardo Maggio on x
Turns out the not-a-licensing-regime looks scarily similar to, huh, a licensing regime
@tszzl Roon on x
people in washington trying to figure out wth “pliny the liberator” is
@deanwball Dean W. Ball on x
Just occurred to me that Anthropic employees who are not US persons will not be able to use Fable/Mythos, making this plausibly (and to be clear, accidentally) the first regulation on recursive self-improvement.
@deanwball Dean W. Ball on x
If implemented as this reporting suggests, Anthropic's latest models would be subject to export controls to all *non-Americans,* including non-American nationals based in the US. This means you should expect to have to prove your citizenship to use Anthropic models.
@deanwball Dean W. Ball on x
If this is true, it is just baffling. An administration whose posture is that we *should* export advanced AI chips to China, which also wants to ban... Britain (and every other non-American on Earth)... from using our best models? I have no words.
@garymarcus Gary Marcus on x
❗️ Commerce's shocking decree this afternoon - which effectively shuts down Anthropic by cutting off access to Mythos 5 and Fable 5 for many of their own employees — seems both wildly overdramatic and also counterproductive for the US AI industry. I concur with @deanwball
r/LeftistsForAI r on reddit
Scoop: Trump admin blocks foreign access to Anthropic's most powerful AI
r/singularity r on reddit
Trump admin blocks foreign access to Anthropic's most powerful AI
r/accelerate r on reddit
Trump admin blocks foreign access to Anthropic's most powerful AI
r/neoliberal r on reddit
Scoop: Trump admin blocks foreign access to Anthropic's most powerful AI
@theo @theo on x
RIP [image]
@mgsiegler M.G. Siegler on x
Well that didn't take long... https://spyglass.org/... [image]
@yassinelanda @yassinelanda on x
what feels like the second rug of the week, woke up to the being banned from using Fable 5... I know of Anthropic employees in London and Paris that also lost access... It's not like we could use Fable 5 for frontier model development (they have been shadow-reprompting our [image…
@corkill_jason Jason Corkill on x
Whats is worse? EU: AI Act, if your model is trained with 10^25 Flops of compute you need to fill in some paperwork. US: If you model was trained with 10^26 Flops of compute we will shut down your companies flagship product weeks before IPO with no warning.
@gailcweiner Gail Weiner on x
The people who actually build frontier AI are disproportionately foreign nationals. Karpathy, Askell, half of every research org. The signal “we will lock you out of the models you ship” is a recruitment disaster. Every top researcher in London, Toronto, Zurich just got a
@fakepsyho @fakepsyho on x
This is the craziest part btw - it could pretty much paralyze the whole company. When I worked at OpenAI, the share of non-US nationals among researchers was 40-60%. I would expect that number to be very similar today. [image]
@alltheyud Eliezer Yudkowsky on x
I can't tell today whether this ends up good or bad. International treaties to stop all further AI escalation would be a definite good! Things short of that? Complicated! This has some bad aspects, like selectivity, and likely overrule. And good aspects, like pushing against
@jspujji Jesse Pujji on x
This is a huge moment. It changes the trajectory and might break the economics propping up the AI bubble: 1/ This slows everything down and hands China the gap. Feels like the first in a new series of frictions on this graph of uninterrupted progress. And the market is
@jun_song Jun Song on x
What people are missing about the US government's AI regulation announcement: ID verification will now be forced on all accounts to prove citizenship. Frontier labs will take your data, and your sovereignty is officially dead. A permanent underclass division and a total
@willmanidis Will Manidis on x
Dario (48 hours ago): “US gov should be able to block model deployment” USG: *export controls models* Dario: “not like that” [image]
@paraschopra Paras Chopra on x
I wonder how Anthropic researchers and engineers who aren't US citizens but were on the Fable team would be feeling right now. They can't access the very thing they helped create.
@_nathancalvin Nathan Calvin on x
Statement from DoW CIO confirming the announcement from Anthropic on pulling Fable. “Some things are more important than revenue cycles, clickbait, and pre-IPO valuation” Also seems to attribute the decision to Secretary of War Hegseth. [image]
@karlbode.com Karl Bode on bluesky
remember the absolute hissy fits industry threw about Lina Khan's “over reach” — pepperidge farm remembers
Yann LeCun Yann LeCun on linkedin
Dario Amodei's ridiculous fear mongering about Mythos/Fable (and AI in general) finally pays off: — The US government bans its use by non Americans, *including by foreign employees in the US* …

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