Department of Commerce has lifted export controls on Claude Fable 5 and Mythos 5

Pragmata 519 points 265 comments June 30, 2026
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Discussion Highlights (19 comments)

Pragmata

>We’ve received notice that the Department of Commerce has lifted export controls on Claude Fable 5 and Mythos 5. >We'll begin restoring access tomorrow, and will share an update soon. >We’re grateful to our users for their patience, and to everyone who worked with us on redeploying the models. From Anthropic on Twitter

colesantiago

This is great news, I'm sure many teams couldn't do their best work because Claude Fable 5 was unavailable. I wonder what their hiring pages look like now, are they starting to remove job postings?

nlh

Here's a copy of the letter that Commerce sent to Anthropic (note who it'a NOT addressed to...) Source: https://x.com/AndrewCurran_/status/2072103733715194048?s=20 ------- June 30, 2026 Tom Brown Chief Compute Officer Anthropic 548 Market Street San Francisco, CA 94104 Dear Mr. Brown: Since the issuance of my previous letters, dated June 12, 2026 and June 26, 2026, Anthropic has taken steps in close coordination with the U.S. government to address the risks associated with Claude Mythos 5 and Claude Fable 5. Among other things, Anthropic has agreed to proactively detect and address security risks associated with the models; to work diligently with the U.S. government on protocols and standards and releases for Mythos, Fable, and future models; and to inform the U.S. government of any malicious activity. In light of these actions and commitments, as well as the Bureau of Industry and Security's evaluation of the diversion risks now presented by Claude Mythos 5 and Claude Fable 5, the controls in the June 12 letter are withdrawn. A license is no longer required for the export, reexport, or in-country transfer, including deemed export or deemed reexport, of the Mythos or Fable models. Commerce reserves the right to reevaluate the decisions made in this letter and the necessity of reimposing a license requirement, should circumstances change or should Anthropic fail to adhere to its commitments. If you have any questions about this letter, please contact me or the Under Secretary of Commerce for Industry and Security, Jeffrey Kessler, at (202) 255-1864. Sincerely, Howard W. Lutnick ------

Sabinus

Chaotic governance model and uncertain business environment by the Trump admin as usual.

avaer

I shudder to think what the definition of "malicious activity" is that they will be reporting to the government. Speech has been severely chilled the last couple of years. It's nice that the restriction is going to get lifted but I hope this doesn't make anyone complacent that their coding work is going to be scrutinized by the US government, with AI, when using these models.

Cider9986

https://xcancel.com/AnthropicAI/status/2072106151890809341 https://archive.is/HSIxa https://archive.is/BbxA1 https://megalodon.jp/2026-0701-0918-51/https://x.com:443/Ant...

natch

They need Lehane or… since OpenAI got him, what is Fabiani up to these days?

matheusmoreira

Good to hear. I was going to cancel my subscription if I couldn't use Fable. No point in paying Anthropic to train models I can't use.

tjohnell

Who knows - this could be the last model we see from Anthropic. Or it just becomes the wild west and we figure it out as we go.

mateenah

I wonder if it's still good

Sabinus

The classic chaotic governance model and creation of an uncertain business environment by the Trump admin in the most important industry for the US economy.

nelox

> We’ve received notice that the Department of Commerce has lifted export controls on Claude Fable 5 and Mythos 5. We'll begin restoring access tomorrow, and will share an update soon. We’re grateful to our users for their patience, and to everyone who worked with us on redeploying the models. https://x.com/anthropicai/status/2072106151890809341?s=46

tamimio

So after this publicity they got, they will release a locked down version of the models, did I get that right?

HDBaseT

The question is how lobotomized will it be now?

drevil-v2

The damage is done. You cannot build a business critical function on top of American SOTA frontier model. Especially not with the current crew in charge. Now whether AI tech is in the same league as say Nuclear tech and therefore by any reasonable standard should be regulated is a different question. We hit the slippery slope on a random day in June 2026 and there is no putting the genie back in the bottle. Any exec or manager that puts load bearing weight on top of Anthropic/OpenAI/Google/AmericanCorp frontier model deserves the stress.

fmdv

Fable was (is) a major leap forward for my development tasks. The quality of the model compared to Opus 4.8 (when I last used it before the ban hammer) was night and day. Fable single-shotting complex and complete applications was a beautiful thing and I can't wait to get back to developing with it. All aboard the hype train!

woggy

Hopefully GPT 5.6 soon

tinypak

I see, so that explains why people are starting to talk about Claude Fable 5 and how I'm now going to have to buy $6,000 of compute for our startup

dzonga

Chinese models brought the building down. are export controls the right thing ? Probably not. but the american economy is over-exposed on "A.I" - the capital expenditure, while the Chinese are proving you don't need to spend tons of capital to get close to the frontier. the Chinese have better building capacity & cheaper energy. that means the market has to correct at some point.

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