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US Keeps Export Curbs on Anthropic’s Fable 5 and Mythos 5, Rejects UK Carve-Out

aiai-governanceai-policy-regulationai-legal-safetypoliticsus-foreign-policy 216 posts · 86 accounts

The Trump administration kept export controls on Anthropic’s most advanced AI models, Fable 5 and Mythos 5, in place after talks failed to resolve ongoing jailbreak concerns. Under a letter from Commerce Secretary Howard Lutnick, Anthropic needs government permission before granting foreign nationals access to the systems, and the company shut them off for all customers to comply with the order.

Washington has also resisted allied exemptions. Reports said the administration rejected a request from UK Prime Minister Keir Starmer for a carve-out for British nationals and companies and would not restore access for G7 countries. More than 100 cybersecurity leaders have urged the US to restore access to the models, warning the restrictions could hinder defense work and AI innovation.

From the sources (25 posts)

@ezraacohen

Maybe Anthropic would be making better decisions vis-à-vis their relationship with the U.S. Government if they weren’t relying on deep state creeps like Jim Baker for advice.

@cernovich

RT @JoshuaSteinman: The interesting thing about export controls is that it means only U.S. Citizens can use the system. Work on the system.…

@barnes_law

RT @DowdEdward: It has come to light that the CEO of Amazon Andy Jassy was one of the tech leaders who tipped off the Administration to sec…

@ns123abc

🚨BREAKING: The U.S government gave Anthropic 90 minutes to shut down Fable and Mythos “Amazon AND others” called senior administration officials to warn about models’ capabilities Then: 1:00pm: Government calls. “Take it down.” Cites “n

@apples_jimmy

RT @SophiaCai99: NEW: Inside the 24-hrs before WH slapped export controls on Anthropic - Last Thursday, Amazon CEO Andy Jassy raised conce…

@andrewcurran_

Interesting article with new details on the lead up to the export controls. Both sides are telling very different stories. Anthropic says they were given a 90 minute hard deadline to pull both models. The administration says their concerns

@scaling01

RT @SophiaCai99: NEW: Inside the 24-hrs before WH slapped export controls on Anthropic - Last Thursday, Amazon CEO Andy Jassy raised conce…

@hackingdave

RT @DavidSacks: I’ve had a number of conversations with folks inside and outside government about the current situation with Anthropic, and…

@sophiacai99

RT @cheyennehaslett: NEW on what led to the unprecedented export controls slapped on Anthropic last night: - On a call with Dario Amodei,…

@sophiacai99

RT @AndrewCurran_: Interesting article with new details on the lead up to the export controls. Both sides are telling very different storie…

@levie

Everyone thinks this is some kind of 4D chess or conspiracy. But it’s quite standard to try and jailbreak AI models, and by definition they would share that research with the government given that’s whole point. I don’t think Amazon assumed

@scmagazine

.@AnthropicAI has released its Fable model to the public, bringing Mythos-level vulnerability discovery capabilities with new safeguards designed to prevent cyber misuse. #cybersecurity #CISO #infosec #AI

@firstsquawk

Semafor: White House export restrictions on Anthropic were reportedly driven by concerns that its most advanced AI models could be accessed or exploited by Chinese actors, according to people familiar with the discussions. The concerns cent

@firstsquawk

The Information: Amazon CEO Andy Jassy was reportedly among a group of tech leaders who privately warned Trump administration officials about security risks associated with Anthropic’s most advanced AI models.

@joshuasteinman

RT @EzraACohen: Maybe Anthropic would be making better decisions vis-à-vis their relationship with the U.S. Government if they weren’t rely…

@tayvano_

@kaiynne Literally 2 different languages. Stop letting Dario talk to USG ffs. Did they learn nothing after last time????????????

@apples_jimmy

RT @gothburz: The letter reached Dario Amodei Friday night, around 9:47, and by the time I left the building the sequence was already close…

@tayvano_

@kaiynne never tell the govt “can’t do nothing everything is fine” they will always bet. and always always win.

@tayvano_

This doesn’t sound anything like a jailbreak anymore. This sounds like someone with access to real Mythos is, knowingly or unknowingly, facilitating access for China????? e.g. someone in Glasswing is compromised

@tayvano_

This literally doesn’t track whatsoever with every other narrative being put forth. It’s way more plausible than someone jailbreaking Fable. But also easily solvable, with or without Anthropic involvement. And *should* be solved bc any G

@ns123abc

🚨UPDATE: Anthropic DISPUTES White House Timeline WH source below claimed Dario was at a “wellness retreat” and couldn’t be reached. Anthropic: “That is absolutely false.” WH: “Export controls were a last resort after begging them for hou

@ezraacohen

@cheyennehaslett You can only think this is “unprecedented” if you discount export controls on hundreds of other novel and dual-use technologies. What a dumb and sloppy characterization.

@polymarket

NEW: Treasury Secretary Scott Bessent reportedly warned Dario Amodei he was making a “bad decision” during tense calls before the White House hit Anthropic with export controls.

@deredleritt3r

The following seems undisputed: - Senior USG officials called Dario Amodei, asked him to roll back Fable 5. - Amodei responded only that he wants more time and more information. Presumably, he was asked again in no uncertain terms to pul

@c_c_krebs

RT @semaforben: Extent to which White House allies are signaling that this is a culture war issue, not a technical one, is striking

Preview built on a synthetic news corpus (16 weeks, Apr–Jul 2026). Impact calls are model reads, not price data.

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